Years ago, when I was a teenager I lived with my mother, stepfather, sisters, and brother. My mother would use Ouija boards in her bedroom a lot, and the house was not a positive environment, if that has anything to do with it...
But one night when I was 16 or 17 years old, I walked into my bedroom and was about to go to bed. I always had a feeling like a presence was in that room watching me, and that particular night the feeling was very strong. The moment I turned off the light I ran fast across the room to my bed, and quickly laid down... Now-- some people claim what I'm about to describe is simply sleep paralysis, nothing out of the norm... But I was completely AWAKE when it happened, and I know without an ounce of a doubt that it was real.
As soon as I laid down on the bed, and the room was pitch-black, couldn't see a thing... I strongly sensed a presence right next to my bed (I was facing towards the room, not the wall). Whatever it was was definitely on the floor RIGHT next to me, and I could feel it staring at my face, and it felt evil or bad. Again, I hadn't even shut my eyes yet, this happened as soon as I got on the bed. I was completely terrified and wanted to get under the covers and hide but for some reason I couldn't force myself to turn away, it was like I was being drawn to it. Words cannot describe the feeling I had; it felt VERY evil. Then I laid on my back and was so terrified and suddenly I couldn't move, my body was "paralyzed" and I tried to scream and no sound would come out. I couldn't sit up; I couldn't even move a finger. I tried to scream or even make a whisper and no sound would come out.
Now, people who experience "sleep paralysis" almost always say that they felt like "it" was sitting on top of them, holding them down. I didn't necessarily feel like the being was literally sitting on me, but I did feel it ABOVE me while this happened. It probably lasted about 2 minutes, but it felt like forever.
When it finally stopped, I was too afraid to get up and walk across the room to the light switch, so I just pulled the covers over my head for the rest of the night. I've only told one or two people about this since then because I don't really think anyone would believe it was real. But I know it was.