PTSD sounds complex and dramatic, but usually people suffering from it go unnoticed. It doesn’t have to look dramatic to ruin a life. Any situation of fear can potentially trigger PTSD, a locked in fear of that situation that can come out when triggered by simple things. Usual signs would be people having nightmares, poor sleep, flashbacks, panic attacks, intrusive thoughts or memories of the event. This often results in the person being angry a lot, isolating themselves from others, and gradually withdrawing from life. It can look like depression in some cases. PTSD is treatable and can really change greatly in a short space of time.