Stress controversies: post-traumatic stres... [J Neuroendocrinol. 2011] - PubMed - NCBI
Then there is always the "Patton" attitude many people display when they hear about PTSD, i.e. merely cowardice or shirking. This is followed by the "Tom Cruise" ideology about psychology, i.e. many mental disorders are supported by psychologists and therefore exist in the DSM simply to keep them in business practice. (In some cases there is good reason to believe this).
Now I am aware that "shell-shock" was always a valid diagnosis pre-PTSD. I also know that people deal with traumatic events differently, individual by individual. I believe that some people are more susceptible to mental trauma than others. I guess the problem has always been weeding out the shirkers from the real victims. The basic symptoms for diagnosis of PTSD are:
1. Reliving the incident.
2. Avoiding situations that remind you of the event.
3. Negative changes in beliefs and feelings.
4. Feeling Key up (hyperarousal)
Symptoms of PTSD - NATIONAL CENTER for PTSD
All of these symptoms can be "mimicked," and depend on the statements of the victim to psychiatric counselors. "I've been having nighmares."; I have flashbacks."; I can't sleep."; I can't go there, it reminds me of..."
So, it's easy for people to think it is a cop-out for purposes of disability benefits. I'm no medical expert however, and I'm willing to leave it to professionals in the field to make such decisions. If it were my restaurant I'd let the service dog in.