Emotional Trauma - Endemic Hidden Cause of many Problems:

ADHD - Trauma - Hypervigilance common after trauma
Irritable Bowel - Trauma - Fight/Flight reflex (FF) lowers digestion power
Heart Disease - Trauma - Via Vagus etc
Asthma - Trauma - via Vagus etc
Gastritis - Trauma - via Vagus
Vertigo - Trauma - 
Psychosomatic Pain- Trauma - 
Self-Harm - Trauma - self harm to feel self to combat disociation
Addictions - Trauma - self-medication (Food, Sugar, Sex, substance abuse in general)
Anxiety - trauma - Amygdala etc become over functioning
Depression - trauma - Freeze part of fight flight system over functioning
Amnesia - Trauma - Hippocampus under-function part of general brain harm
Insomnia - Trauma - FF reflex overactive, amygdala
Brain Fog - Trauma - 
Lack of Life Direction - Trauma - Posterior Cingulate functional suppression 
Low Energy - Trauma - see above...
Many more......
Quite simply if we have unresolved emotional traumas this literally pops out somewhere else. There are strong correlations between Trauma and the above problems so much so some people consider unresolved Trauma to be the health threat today.
Personally, in my manual therapy practice I've noticed symptoms improve considerably when trauma is addressed. As any clinician I don't jump to a diagnosis. However sensitivity to the powerful influence of trauma in various area led me to research it.
Emotional Trauma influences the organs via the Vagus nerve because of the fight/flight/freeze response. 
So I thought I would share an article about the effects of emotional trauma on the brain. 
The major areas influenced are the Amygdala which goes into overfuctntion and the Hippocampus which goes down in function. The amygdale is for fear so anxiety can become chronic. The hippocampus is for memory and emotional regulation. The memory is the most severely affected by emotional trauma.
I found research also saying that it affect the Wernicke and Brocks corner of the brain too. These are the areas for speech and understanding of language. Ever speechless with shock? That's why. Also people cannot explain why they feel anxiety.
ref: The Body Keeps the Score (Bessel), Betrayal Bonding (Cames)
The Polyvagal Theory (Porges - Paper, book), Stress Breaks Hearts (webMD), Waking the Tiger (Levine).