Hello Cyborg24,
Welcome to PC

You've done the right thing joining PC there is so much support and information here that will be beneficial to you.
There is a PTSD thread and quite a number of people who suffer with the disorder. I have it, I have made progress through REM therapy but I still can't stand anyone creeping up on me, they do so at their own risk.
Certain situations or buildings set me off, men I don't know coming too near me, certain images will do it too. I prefer not to talk about it too much though. I have opened up about it here but I still feel a bit raw in doing that.
There are many folks who will be supportive and understanding and as you go through therapy you will see and feel improvements,
Rhiannon