For example, I once heard an uncle who was an ex-Pak-Army person making fun of US Army folks having PTSD. So this uncle himself is obese, chain smoker, very dysfunctional family and thought the world was out to get him. The way I saw it, he had symptoms of depression even though he had never been in a war but unfortunately he considered that the suggestion of going to a shrink was close to losing his manly-hood.
Those by no means are indications of PTSD. Rather PTSD starts off with a very simple heightened awareness and a general lack of security is felt by the individual.