With acute versus delayed PTSD, there may be PTSD right after a
traumatic event, but sometimes, I mean, what I saw a lot of in treating Vietnam vets was that the trauma didn't show up for 20 years and all of a sudden it showed up, something triggered it, and the person was able to compartmentalize
whatever they had gone through, but some current
event 20 years later blew open the wall separating them from that trauma in combat and up came the trauma along with PTSD.