I've had a lot of weird stuff happen to me for as long as I can remember. I just thought I was crazy for the longest time, but I hope not. Let me try to explain as best as I can.
For the longest time in my life I've felt different from all the other kids in school. Many times I thought I was insane. I remember always seeing weird things that I couldn't explain. I didn't much enjoy spending too much time around other people either. When forced to be in a situation with a lot of people I have always gotten so overwhelmed that I can't think, can't focus... It's like someone turned on a mini flood light. My mood can change on a dime inexplicably when I go different places. I still don't really know how to handle these random intense emotions that come out of no where and basically knock the wind out of me.
There have been countless times where I've gone to someone's house and have been left alone for a short bit and I'd see something really quickly. Usually it was a dark shadow darting around a corner or a light zooming past in a dark hallway or something like that. Sometimes it'd happen in my own home. Other times I'd hear someone in a different room call my name or people talking in the garage when I was the only one home. Once it sounded like an old lady said "hello" right next to me.
But then there were a few more intense events. When I was in 8th grade I had been out of school for a while from being sick. I was lying in bed, frustrated and not able to sleep. Suddenly the corner of the room by the door started blacking out and expanding, eventually blocking out all the light around the door from the hallway. What looked like a huge moving shadow emerged from the darkness with red eyes that had snapped open and pierced right through me. Then it came after me, which is when my mom found me cowering in the corner of my room. It wasn't until years later that I found out that it wasn't in my head. My sister's fiancée relayed to me how he has seen the exact same thing a few times as well. My mom, as well, had seen something she said was very similar.
One night I was in my kitchen and I looked out my front door and there was a gray creature-humanish looking face staring straight at me. Another instance was when my sister was with me at our grandparents' house when we were young and we looked down the stairs to the basement and we heard something growling and saw a very large shadow move across the foot of the stairs into a different room.
Every time I meet someone new I get some sort of feeling about them. Sometimes it's comfortable, happy, and warm but other times I feel sick, angry, or dirty (like I'm covered in invisible mud or something). I've noticed that these initial feelings most times turn out very much so correct.
I also have déjà vu a lot but I can't figure out where I know it from or the significance of the situation.
This is pretty much what's been going on. I'm just looking for advice or input of any sort. I want to know if I should check myself into the nearest loony bin or not.