Last time I had a night terror (where you wake up frightened due to some vague reason, distinct from a nightmare) was when I was under 10, as expected (children generally have these). But recently, out of nowhere (quite literally, randomly in the middle of the night, a single moment of utter fear) I got another one, and I actually remember calling for my "mummy", as I used to do as a child. Of course, now I live alone and kind of have to even though I'm very depressed over being lonely.
This moment of sheer horror, though... inexplicable, and then only to realize I was completely alone. It was the worst one's imagination could come up with. Anyone has any theories on why this happens? (In adults? It's not really common, I gather, and I didn't have one for over ten years.)