Am I waking up in REM or what is going on?

For the past two days whether night time sleeping or short naps, I keep waking up but not being able to see because my eyes feel like they are twitching and rolling around erratically and painfully. This seems to happen for a good minute before I can see, then I become physically ill from the whole thing. I am becoming afraid to go to sleep because waking up has become frightening to say the least. Anyone know what is happening to me?