I had never actually experienced it before until today when I woke from having a terrifying nightmare, and it is quite possibly the scariest thing I have ever been through. It's so hard to explain but when I was fighting against the sensation of being paralyzed, I tried so hard to reach for my phone. Now my right arm seems to be hurting from where I was trying so much. I still feel kind of shaky and weak and now I'm staying awake because I am too scared to sleep. It was like someone was there watching me, I have to keep glancing around me to make sure no one currently is. I know it isn't anything dangerous but I'm frightened and I never want to experience something like that again. I want to sleep but I don't know what to do.