Post-traumatic stress disorder (PTSD) – Symptoms & causes

July 30, 2026

Post-traumatic stress disorder, commonly known as PTSD, is a mental health condition that can develop after experiencing or witnessing a traumatic event. It can affect thoughts, emotions, sleep, relationships, physical health & the ability to feel safe in everyday situations.

PTSD is sometimes incorrectly viewed as a condition that affects only military personnel or first responders. In reality, a PTSD disorder can develop in people from every background following experiences such as violence, abuse, accidents, medical emergencies, disasters, or the sudden loss of someone under traumatic circumstances.

As a licensed Naturopathic Doctor and primary care healthcare provider with nearly 20 years of clinical experience, I have observed that people do not always recognize their experiences as PTSD symptoms. A patient may instead seek help for insomnia, panic, fatigue, digestive problems, chronic pain, irritability, poor concentration, or a persistent feeling that something bad is about to happen.

Sometimes as a doctor, we need to put ourselves in the patient’s shoes to realize that behaviours such as avoiding certain places, withdrawing from loved ones, or remaining constantly alert may represent attempts to feel safe rather than a lack of motivation or willingness to move forward.

What is PTSD?

It is important to understand what PTSD is. PTSD is a mental health condition that may develop after a person experiences, witnesses, or is repeatedly exposed to an event involving actual or threatened death, serious injury, or sexual violence. 

The traumatic event may be:

  • Experienced directly
  • Witnessed in person
  • Learned about when it happened to someone close
  • Repeatedly encountered through a person’s work

Examples of potentially traumatic experiences include:

  • Physical or sexual assault
  • Childhood abuse or neglect
  • Domestic violence
  • Serious motor vehicle accidents
  • Military combat
  • Workplace violence
  • Natural disasters
  • Traumatic childbirth
  • Life threatening illness or medical treatment
  • The violent or unexpected death of someone close
  • Repeated exposure to traumatic details through emergency work

Most people experience some emotional distress following trauma, but not everyone develops PTSD. The World Health Organization estimates that approximately 3.9% of people worldwide experience PTSD at some point in their lives.

What causes PTSD?

The primary causes of PTSD involve exposure to a traumatic event. However, trauma alone does not determine who will develop the condition. 

Factors that may influence risk include:

  • The severity or duration of the trauma
  • Repeated exposure to traumatic events
  • Previous childhood trauma
  • Feeling helpless or trapped during the event
  • Physical injury
  • Limited support afterward
  • Ongoing danger or instability
  • Previous anxiety, depression, or other mental health concerns
  • Occupational exposure to trauma
  • Additional stressful events following the trauma

In my opinion, PTSD should not be understood as a sign that someone was weak or failed to cope properly. It reflects a complex interaction between the traumatic experience, the nervous system, personal history, environmental circumstances & the support available afterward.  Feeling supported by family, friends, or other trusted people after a traumatic experience may reduce the risk of developing PTSD.

PTSD symptoms

The PTSD symptoms used in clinical assessment are generally organized into four broad groups:

  1. Intrusive or re experiencing symptoms
  2. Avoidance
  3. Negative changes in thoughts and mood
  4. Changes in arousal and reactivity

For a formal diagnosis, symptoms must generally continue for more than one month, cause significant distress or impairment & meet specific clinical criteria.

Re-experiencing the trauma

A person may repeatedly feel as though the traumatic event is returning.

Symptoms can include:

  • Unwanted memories
  • Disturbing dreams or nightmares
  • Flashbacks
  • Feeling as though the event is happening again
  • Intense emotional distress when reminded of the trauma
  • Sweating, nausea, shaking, or a racing heart when triggered

Flashbacks may feel vivid and immediate. During a severe episode, a person may temporarily lose awareness that they are currently safe.

Avoidance symptoms

Avoidance involves trying to stay away from reminders of the trauma.

This may include avoiding:

  • Certain people
  • Places
  • Conversations
  • Activities
  • Media reports
  • Thoughts
  • Emotions
  • Medical appointments
  • Driving or transportation
  • Intimate relationships

Avoidance can provide temporary relief, but it may also gradually make a person’s world smaller and interfere with recovery.

Negative changes in thoughts and mood

PTSD may change how someone views themselves, other people & the world.

Possible symptoms include:

  • Persistent fear, guilt, shame, or anger
  • Feeling emotionally numb
  • Losing interest in enjoyable activities
  • Feeling detached from family or friends
  • Difficulty experiencing positive emotions
  • Blaming oneself for the trauma
  • Believing that no one can be trusted
  • Feeling that the world is permanently unsafe
  • Difficulty remembering parts of the traumatic event
  • Hopelessness about the future

In Canada, we often overlook more than physical pain. Emotional numbness, shame, disconnection & the loss of a basic sense of safety can be deeply disabling even when there is no visible injury.

Changes in arousal & reactivity

The nervous system may remain constantly prepared for danger.

Symptoms can include:

  • Feeling on edge
  • Being easily startled
  • Irritability
  • Angry outbursts
  • Difficulty sleeping
  • Poor concentration
  • Hypervigilance
  • Reckless or self-destructive behaviour
  • Constantly checking exits or surroundings
  • Feeling unable to relax

These symptoms can affect work, school, parenting, relationships & physical health.

Signs of PTSD

Common signs of PTSD may include:

  • Recurring nightmares
  • Avoiding reminders of a traumatic experience
  • Emotional withdrawal
  • Sudden fear or panic
  • Sleep disruption
  • Irritability
  • Being easily startled
  • Difficulty trusting people
  • Persistent guilt or shame
  • Increased alcohol or substance use
  • Problems concentrating
  • Feeling unsafe despite being out of danger
  • Unexplained physical tension or pain
  • Loss of interest in activities
  • Flashbacks or intrusive memories

Not every day a patient comes to me and asks, “Do I have PTSD?” More often, patients describe feeling unlike themselves since a particular event without realizing that their symptoms may be connected to trauma.

How do you know if you have PTSD?

People often ask, “How do you know if you have PTSD?”  You may need an assessment if, following a traumatic event, you experience:

  • Intrusive memories or nightmares
  • Avoidance of reminders
  • Persistent changes in mood or beliefs
  • Hypervigilance or exaggerated startle responses
  • Symptoms lasting longer than one month
  • Difficulty functioning at work, school, or home
  • Problems maintaining relationships
  • Significant emotional distress
  • Increased substance use or risky behaviour

A self assessment questionnaire may help identify possible symptoms, but it cannot confirm a diagnosis. The PTSD Checklist for DSM-5 is a recognized 20-item screening tool, while a structured clinical interview remains the preferred method of diagnosis. 

A qualified mental health professional should also assess whether symptoms may be better explained by:

  • Acute stress disorder
  • Panic disorder
  • Depression
  • Generalized anxiety
  • Obsessive-compulsive disorder
  • Traumatic brain injury
  • Substance use
  • Sleep disorders
  • Another medical or psychiatric condition

Acute stress reactions versus PTSD

Emotional distress immediately after trauma does not automatically mean that a person has PTSD. 

During the first days or weeks after trauma, people may experience:

  • Shock
  • Fear
  • Poor sleep
  • Intrusive memories
  • Irritability
  • Emotional numbness
  • Difficulty concentrating
  • Feeling disconnected from reality

When clinically significant trauma symptoms occur from three days to one month after an event, acute stress disorder may be considered. PTSD is generally diagnosed when the required symptoms continue for more than one month. Early support remains important even when the symptoms have not lasted long enough for a PTSD diagnosis.

What is a PTSD attack?

The term PTSD attack is commonly used, but it is not a separate formal diagnosis.

People may use it to describe a sudden period of:

  • Intense fear
  • Flashbacks
  • Panic
  • Dissociation
  • Shaking
  • Sweating
  • Rapid heartbeat
  • Difficulty breathing
  • Crying
  • Anger
  • Feeling frozen or unable to speak
  • An urgent need to escape
  • Feeling that the traumatic event is happening again

A PTSD attack may resemble a panic attack, but it is often connected to a trauma reminder and may include vivid memories or a sense of reliving the event.

What is a PTSD episode?

A PTSD episode is another non technical phrase people use to describe a temporary worsening or activation of trauma symptoms.

An episode may involve:

  • A flashback
  • A nightmare followed by prolonged distress
  • Intense anxiety after a trigger
  • Emotional shutdown
  • Dissociation
  • Hypervigilance
  • Irritability or anger
  • Avoidance
  • Physical symptoms such as nausea, shaking, sweating, or a racing heart

Triggers are not always obvious. They may include a familiar smell, tone of voice, medical procedure, anniversary, weather condition, physical sensation, or news story.

How long can a PTSD episode last?

There is no single answer to “How long can a PTSD episode last?” The most intense part of an episode may last:

  • Several minutes
  • An hour or more
  • Several hours

However, the emotional and physical after effects may continue for the rest of the day or for several days. Sleep disruption, exhaustion, irritability, anxiety & increased vigilance may remain after the immediate trigger has passed. 

PTSD episode length may be influenced by:

  • The type of trigger
  • The severity of the trauma
  • Current stress
  • Sleep deprivation
  • Alcohol or substance use
  • Whether the person feels safe
  • Available coping skills
  • Social support
  • Access to effective treatment

If episodes are prolonged, worsening, or interfering with daily life, a professional assessment is important.

PTSD anxiety

PTSD anxiety can feel different from ordinary worry. 

It may include:

  • A constant sense of danger
  • Panic when reminded of the trauma
  • Fear of losing control
  • Avoiding unfamiliar situations
  • Difficulty being alone
  • Fear of sleeping
  • Constantly scanning for threats
  • Physical tension
  • Racing thoughts
  • Difficulty trusting reassurance

As per my observation, people with PTSD anxiety may understand intellectually that they are safe while their body continues to respond as though danger is present. This disconnect can be confusing and frustrating. For readers who want to better understand whole person support for stress and emotional balance, this related guide on Naturopathic Support for Stress & Mood Balance explains how lifestyle, nutrition, sleep, and stress-management strategies may support overall emotional wellness.

Symptoms of PTSD in men

Possible symptoms of PTSD in men include the same core symptoms seen in anyone, but expression may differ.

Some men may show:

  • Irritability or anger
  • Emotional withdrawal
  • Risk-taking behaviour
  • Increased alcohol or substance use
  • Workaholism
  • Difficulty discussing fear or vulnerability
  • Sleep problems
  • Relationship conflict
  • Physical tension or chronic pain
  • Avoidance of medical or mental health care

These differences may partly reflect social expectations that discourage some men from describing emotional distress. Men may therefore appear angry, detached, or reckless when they are actually experiencing fear, shame, grief, or hyperarousal.

Signs of PTSD in women

Possible signs of PTSD in women include:

  • Anxiety
  • Depression
  • Nightmares
  • Avoidance
  • Emotional numbness
  • Feelings of shame or self-blame
  • Hypervigilance
  • Difficulty trusting others
  • Sleep disturbance
  • Panic symptoms
  • Dissociation
  • Physical complaints without an obvious explanation

Women are affected by PTSD more often than men at the population level, although people of any sex or gender can develop the condition.  Not all patients are equal based on age and gender because the nature of trauma, social expectations, biological factors, access to support & willingness to disclose symptoms may affect how PTSD presents.

PTSD in different stages of life

Children may express trauma through:

  • Clinging to caregivers
  • Repetitive play related to the event
  • New fears
  • Bedwetting
  • Nightmares
  • Irritability
  • Developmental regression
  • School difficulties
  • Physical complaints

Children may not have the words to describe flashbacks, anxiety, or emotional numbness.

Young adults may experience:

  • Academic problems
  • Social withdrawal
  • Substance use
  • Risk-taking
  • Relationship difficulties
  • Sleep disruption
  • Difficulty planning for the future

Trauma during this stage can interfere with identity, independence, education & early career development.  PTSD symptoms can continue for decades or re-emerge later in life.

Retirement, illness, bereavement, cognitive changes, news reports, or a loss of independence may reactivate older traumatic memories. Symptoms may be mistaken for depression, dementia, insomnia, or general anxiety.

Healthcare workers, military personnel, firefighters, police officers, paramedics, social workers, journalists & others may experience repeated occupational exposure to trauma.  When it comes to working professionals in high-pressure fields, I have observed that people may remain highly functional at work while experiencing nightmares, emotional numbness, irritability, or relationship problems in private.

Levels of PTSD

People sometimes search for levels of PTSD, such as mild, moderate, or severe.  These are useful descriptive terms, but they are not separate types of PTSD in the formal diagnostic criteria. 

Severity may be considered according to:

  • Number of symptoms
  • Frequency of episodes
  • Degree of functional impairment
  • Sleep disruption
  • Presence of dissociation
  • Substance use
  • Relationship difficulties
  • Ability to work or attend school
  • Risk of self-harm
  • Coexisting depression or anxiety

A person with apparently “mild” symptoms may still be experiencing significant distress, particularly if the symptoms have continued for years.

Complex PTSD

Complex PTSD may develop following prolonged or repeated trauma, particularly when escape was difficult or impossible. 

Examples may include:

  • Long term childhood abuse
  • Domestic violence
  • Human trafficking
  • Torture
  • Captivity
  • Repeated interpersonal violence

In addition to the symptoms of PTSD, complex PTSD may involve:

  • Difficulty regulating emotions
  • Persistent feelings of worthlessness
  • Deep shame
  • Difficulty maintaining relationships
  • Feeling disconnected from others
  • A disturbed sense of identity

The ICD-11 recognizes PTSD and complex PTSD as separate diagnoses, while the DSM-5-TR incorporates many complex trauma features within its broader PTSD criteria.

Can PTSD be treated?

Yes. Effective treatments are available & many people improve significantly.

Evidence informed treatments may include:

  • Trauma-focused cognitive behavioural therapy
  • Cognitive processing therapy
  • Prolonged exposure therapy
  • Eye movement desensitization and reprocessing
  • Present-focused therapies
  • Appropriate medication
  • Supportive counselling
  • Treatment of sleep problems, depression, anxiety, or substance use
  • Peer and family support

Treatment should be individualized. Some people are ready to process traumatic memories early, while others first need help establishing safety, emotional regulation, stable housing, sleep, or practical support. The World Health Organization recognizes trauma focused cognitive behavioural therapy and eye movement desensitization and reprocessing among the psychological treatments used for PTSD.

The Naturopathic approach to PTSD

Naturopathic Doctors are highly trained primary care healthcare professionals who can contribute to collaborative care for people experiencing trauma related symptoms.  Through my education as a Naturopathic Doctor, I learned to consider the interaction between mental and physical health. In practical experience as a doctor, I have observed that trauma may affect sleep, digestion, energy, pain, blood pressure, appetite, substance use & the ability to follow a daily routine. 

A naturopathic assessment may explore:

  • Sleep quality
  • Nutrition
  • Physical activity
  • Caffeine and alcohol intake
  • Digestive symptoms
  • Pain
  • Medication effects
  • Social support
  • Workplace stress
  • Other medical or mental health conditions

Naturopathic care should complement not replace appropriate trauma focused psychotherapy, psychiatric care, emergency assessment, or prescribed medication. As a wellness specialist, I believe that supporting physical health can strengthen overall resilience. However, no diet, supplement, exercise program, or relaxation technique should be presented as a stand alone cure for PTSD. We need to understand the patient deeply to give them holistic treatment. The goal is not to force someone to forget what happened, but to help the person regain safety, function, connection & control over their life.

When should you seek urgent help?

Seek immediate assistance if you or someone you know is:

  • Thinking about suicide or self-harm
  • Unable to remain safe
  • Experiencing severe dissociation
  • Using substances in a dangerous way
  • Becoming violent or unable to control dangerous behaviour
  • Unable to care for basic needs
  • Experiencing hallucinations or severe confusion
  • In an actively abusive or dangerous environment

Call 911 or go to the nearest emergency department when there is an immediate danger.  In Canada, call or text 988 for immediate suicide crisis support.

Final thoughts

PTSD is a real and potentially disabling response to trauma. Its symptoms may include flashbacks, nightmares, avoidance, anxiety, emotional numbness, irritability, hypervigilance & changes in beliefs about oneself or the world.  

A PTSD episode can last minutes or hours, with after effects that may continue much longer. The condition may present differently across individuals & the absence of visible distress does not mean that someone is unaffected.

Sometimes as a doctor, we need to understand the patient as more than a collection of symptoms. Trauma can influence the nervous system, relationships, physical health, work, identity & sense of safety.

If trauma-related symptoms have continued for more than a month, are getting worse, or are interfering with daily life, speak with a qualified healthcare or mental health professional. PTSD is treatable & seeking help is an important step toward recovery.

PTSD can affect sleep, stress response, energy, digestion, mood & daily routines in ways that feel difficult to explain. At Aspire Natural Health, our naturopathic team may help you explore supportive wellness strategies alongside your regular mental health or medical care. Book a consultation to discuss your concerns in a calm, personalized setting and take one safe step forward.

FAQ’s

How to recover from PTSD?

Recovering from PTSD usually starts with safe, professional support. Evidence-based options may include trauma-focused therapy, EMDR, cognitive behavioural therapy, medication when appropriate, support groups, grounding techniques, sleep support & gradual lifestyle rebuilding. Recovery does not mean forgetting the trauma; it means reducing how strongly it controls daily life. The right plan depends on the person, symptoms, safety & support system.

What are the main causes of PTSD?

PTSD can develop after experiencing or witnessing a traumatic event, such as violence, abuse, assault, a serious accident, war, disaster, sudden loss, or repeated exposure to distressing events. Not everyone who experiences trauma develops PTSD. Risk may be higher when someone has repeated trauma, limited support, past mental health concerns, ongoing stress, or a personal or family history of mental illness or substance use.

How to rebuild your life after PTSD?

Rebuilding life after PTSD often happens step by step. Helpful steps may include working with a trauma-informed professional, creating a safe routine, improving sleep, reconnecting with trusted people, learning grounding skills, reducing triggers where possible, setting small goals & being patient with setbacks. Healing is not always linear & support can make the process safer and less overwhelming.

What are 5 signs of PTSD?

Five common signs of PTSD include unwanted memories or flashbacks, nightmares, avoiding reminders of the trauma, feeling constantly alert or easily startled & negative changes in mood such as guilt, fear, anger, numbness, or feeling detached. PTSD symptoms usually last longer than a short-term stress reaction and can interfere with relationships, work, school, sleep & daily life.

Do people with PTSD cry easily?

Some people with PTSD may cry easily, especially when they feel triggered, overwhelmed, unsafe, exhausted, or reminded of the trauma. Others may feel emotionally numb and find it difficult to cry at all. PTSD affects people differently, so crying is not required for diagnosis, but strong emotional reactions, numbness, irritability, or sudden distress can all be part of trauma responses.

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Written By: Dr. Romi Raina ND
Call or Text: 905-426-9116
Email: info@aspirenaturalhealth.ca

About the Author

Dr. Romi Raina is a Toronto-based Naturopathic Doctor with nearly two decades of experience in holistic healthcare. Specializing in integrating natural therapies, he offers virtual consultations in dietary management, botanical medicine, and lifestyle counseling. Dr. Raina's unique approach combines scientific knowledge from his degrees in Life Sciences and Anthropology with insights from his service in the Canadian Armed Forces. As founder of Collaborative Education, he's committed to advancing naturopathic knowledge, embodying his philosophy that naturopathy helps patients thrive, not just survive.

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