When I was growing up I remember hearing people talk about soldiers who had gone off to war and then come home with problems. They used the term "shell shock" to describe this condition of extremely negative symptoms that included flashbacks, sleep difficulties and exaggerated startle response. Often the returning solider would withdraw from others or try to escape memories through use of alcohol, drugs, or suicide attempts.
from Health and Fitness:Mental Health Articles from EzineArticles.com http://ift.tt/20a8AKk