Yes, I saw it all. I work in a hospital, anxious to check with the docs there about it tomorrow. We see quite a bit of PTSD but I'm in the legal part of it, not medical. My favorite fellow is a Pathologist - he's the medical expert in my family :)
My brother (then age 39-)was a Firefighter on one of the Urban Search & Rescue Teams that went to Oklahoma in '95, immediately after the bombing. They were supposed to be on a "rescue" mission, but when they got there, all the could do was recover... OM, so sad what he saw, experienced. My gf's husband was on the same team w/him. Familys of Firefighters were offered a chance to attend a "de-briefing", so we could know how to help them when they came home. We were told he could be "fine" for days or years, and then have nightmares or other things come up. When the Twin Towers were hit 2001, he said he had the smells of Oklahoma come back, as though he was right there. That was 6 years later.