Um, I'm no doctor, but I would say, yes, it's possible to get PTSD from exposing yourself to something horrific like that. PTSD happens because you've been exposed to something and, you know, some people get it and some people don't. There's also something called acute stress syndrome, which mimics PTSD but it happens a lot closer to the event. PTSD is marked by the long lasting effects of the exposure to trauma.