I used to suffer from this about 3 times a week then it went away... now it has come back and I hate it, im not stressed, i dont sleep on my back and i have a normal sleep pattern. It has started happening a lot lately and it is truelly terrifying!!! I have horrible visions, it feels as though I could die any minute but cant do anything about it because i cant move, and can have more than one episode in a night, it is making me scared to go to sleep. Anyone have any suggestions to make it stop or calm down?