Post Traumatic Stress Disorder (PTSD)

Post Traumatic Stress Disorder (PTSD) impacts up to 6% of the population [1].  It is a severe anxiety disorder that can occur in some people after they experience a severe psychological trauma or ongoing psychological "toxic" stress.  It results in flashbacks, unpleasant intrusive memories, mood and behavioural changes, and  can also result in many unpleasant physical symptoms, as well as depression.

Post Traumatic Stress Disorder (PTSD)   is now being linked to central sensitivity syndromes like fibromyalgia, chronic fatigue syndrome and multiple chemical sensitivity, [2] Although additional research regarding the link between PTSD and central sensitivity is necessary says Dr Yunus.[3]

Like people with central sensitivity syndromes, people with PTSD  experience HPA axis dysregulation.  and imbalances to the neuroendoimmune systems.   When people are not in balance they can experience a wide range of physical, psychological, environmental and stress related symptoms.




People with PTSD also experience changes to the brain , nervous system, that amplify pain, stimuli and stress sensitivity.  This is particularly severe if the person is also experiencing hypocortisolism says Fries 2005.  Which apparently impacts around 1 in 4 people with PTSD, who may also have co-morbid fibromyalgia or chronic fatigue syndrome. [4]

People with PTSD can benefit from addressing the common causes of HPA axis dysregulation,. This is done by following a basic Self Care - Self Management Plan like the one recommended by 50 symptoms gone here, But it is best if the plan also includes ongoing psychological support, desensitisation therapies, and self help strategies  specifically aimed at helping people with PTSD, like the Self Help Strategies for PSTD recommended by Anxiety BC. (download - selfhelpptsd)

Like Multiple Chemical Sensitivity (MCS), PTSD is thought to be a time dependant sensitisation disorder except that it is the emotional stress (instead of chemical) that causes sensitization by a single severe exposure or repeated ones to various stresses, eg, war, torture, childhood abuse, rape, natural disasters, and terrorist attacks [5]. Startle reflex (by a loud auditory tone or noise and manifested by eye blinking and increased heart rate) is exaggerated in PTSD [6]

A small percentage of people with PTSD also have Multiple Chemical Sensitivity. This appears to be the case in some Gulf War Veterans who were exposed to high levels of pesticides while serving in the Gulf. [7]

If the person with PTSD also has Multiple Chemical Sensitivity (MCS) both conditions need to be managed simultaneously, which can be a bit tricky.  Also reducing exposure to stimuli like noise may  provide some symptom relief.

Sometimes veterans who have experienced a traumatic brain injury caused  by a concussion or exposure to very loud noises like explosions are misdiagnosed with PTSD.  TBI and PTSD can coexist. [8]

As you can see PTSD is a very complex disorder.  Which is why it is advisable to work with a mental health professional who is specifically trained in the management of PTSD.


A great resource for helping sufferers of PTSD is PTSD Coach Online

You may like to read  PSTD fact from Beyond Blue.



1. Dr Lavidis 2014 The neuroendocrine aspects of posttraumatic stress disorder

2. Pall Explaining Unexplained Illnesses  Disease Paradigm for Chronic Fatigue Syndrome, Multiple Chemical Sensitivity, Fibromyalgia, Post-Traumatic Stress Disorder, Gulf War Syndrome and Others

3 Yunus Fibromyalgia and Overlapping Disorders: The Unifying Concept of Central Sensitivity Syndromes

4. Fries 2005  A New View On Hypocortisolism.

5. Friedman MJ. Neurobiologic sensitization models of post-trau- matic stress disorder: their possible relevance to multiple chem- ical sensitivity syndrome. Toxical Ind Health 1994;10:449-62.

6. Shalev AY, Peri T, Brandes D, Freedman S, Orr SP, Pitman RK. Auditory startle response in trauma survivors with posttraumatic stress disorder: a prospective study. Am J Psychiatry 2000;157: 255-61.

7. Gulf War Illness and the Health of Gulf War Veterans: Research Update and Recommendations, 2009-2013

8. Bryant 2011 Post-traumatic stress disorder vs traumatic brain injury


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