I'm 15 and this is probably the first one I've had, its comfortable to know there's others and not just me. I didn't know what was happening, other than I was in my room and others were just a crossed the hall from me. My first reaction was to cover my ears, something call explosive head, i heard a TV with channel that never existed (I don't have a tv) my head had at least 4 things that I could concentrate on. one the tv,  my mind running through all the possibles thing I can and shouldn't do, very loud ringing what still somewhat I can hear the ringing, and other noises I couldn't tell apart from. my psychical body wasn't moving at I couldn't make out what I was doing from what I wasn't doing, and I felt as if there was some one or thing there, with a almost not bad intent but not good either. I tried to focus on what I was doing and not let my mind run wild and scare me more, so figuring out that I can't do anything, I try to call out. my words didn't even make it passed my lips and all most came as a mmmh mmhh (mom) and by that time I could move y entire hand to my ear and block out the noise to figure that it was in my head, I was trying again to get help and I finally got a mahh out not loud enough to wake anyone, but to all most sit up and figure out what happened. there's still noise but I was really only worried about not being alone in my own room. I've not had a good sleep schedule since a couple of months ago and this is the first day that I actually tried sleeping hours before when I do, I tend to wake up and think about things not over think but just remembering them. (aka people, school work ect.) Ive never heard about my other family members having anything like I did, or anything slimier, so kinda worried it was medical till I looked it up, but i'm not worried about being hurt or as some one is there anymore, even if it does happen again i'm sure this is the first thing I'll remember. I'm not the best at explaining  but if this does help someone or anyone your not alone. It's okay and can happen to the best of us. I'm sure I wont forget but I have no reason to be scared of getting hurt or worse. sorry for the long story lol.