That sounds terrible. Glad you made it through but I would think you relive that from time to time.
I have a screwed up neck so when I had a major surgery they had to intubate me (tube down the throat) while I was awake and immobilized (arms strapped down at my sides etc) for surgery. For a long time it would come back to me every time I started to fall asleep. I'm ok now but that PTSD is nothing to mess with. I don't know if I could do it again.