I wonder if the trouble with falling asleep is somehow my body having a fear of losing consciousness again?

Since my accident back in March (where I blacked out for several seconds after being smacked in the head by my horse's passing hoof) I cannot fall asleep unless medicated or until I pass out from being exhausted.

Tonite, I finally started to fall asleep and a short few minutes later I woke up with a jolt from dreaming that I got kicked in the head. I have not had this experience before, but did not take any meds tonite. I guess I should give up the hope it can be done without meds anymore.

Could this also be a small indication of PTSD that I wasn't yet aware of?

Can anyone relate?