Weird

Hey guys! So, bare with me here. The other night I woke up pinching myself under my left eye around my cheek bone! When I woke up the next morning I thought it was a dream until I looked in the mirror to see I had skin missing, and pink. I didn't have any abnormal or horrific dreams I can think of, and can't seem to remember doing this any other time. I am seriously weirded out. Normally, when a person sleeps, everything is somewhat disabled. Like, you can't move your arms and legs or anything like that. I'm starting to wonder if it was one of those instances that just happen, like people who sleepwalk. I have been known to talk in my sleep, but never pinch! What is going on?