Ah yes, sleep paralysis. Very Scary when it happens and you don't know what it is! I read about it years ago, and was relieved to learn that what I was experiencing had a name. Now when it happens, I just talk myself through it. Knowledge is power.
Witness My Fury-When I was really little, I had a dream about a Fisher-Price toy phone talking to me. I have hated those damned little phones ever since. It was very real and for years, I too, thought it really happened!