When I was young, way before I started drinking. like between 5 and 11 years old probably, I used to have night terrors. I also would just sleep walk normally sometimes, no fear just wandered around with not much recollection the next day. But the night terrors were HORRIBLE. Not only for me but my parents as well, could you imagine your kid waking up screaming bloody murder out of the blue? No calming me down just total freaking out. Probably thought I was possessed or something....
I ended up staying in the hospital for 5 days or something like that getting all kinds of brain scans and such, they even had to question whether I was being sexually abused, I dont remember anyone asked me about it though. Turned out not finding anything wrong with me. Eventually lactose intolerance came to be the culprit. If I had dairy before bed I guess my upset stomach would wake me up in that in between state and my brain would sometimes just make me sleep walk and other times go into a panic.