Have been looking into the effects of Childhood Trauma into causing later PTSD (or symptoms of a type associated with PTSD) in relation to a close (civilian) friend. One thing I read was this: I don't know whether the author is a respected or qualified person but there did seem to be some sense in that to my mind. The rest of the article is HERE. Some is perhaps controversial or wrong but the quoted part above is what interested me. Is this theory borne out in the findings of current practitioners here or perhaps in the experiences of sufferers? As a supplementary question, is social withdrawal and an inability to maintain relationships a common symptom of PTSD?