Follow-Up:
Hi all. I have also experienced the sleep paralysis. It seems that all of us have had the same experiences. Lying on the back, a malevolent presence, paralyzation, sexual urge, in my case suffocation and extreme terror. I beleive mine started because i was taking ephedra to stay awake for elongated periods of time...lack of sleep made me tired and week. If you are a spititual person or even if you're not I suggest you look up the incubus or in the case of a man the succubus. It is a demon that comes to mortals in the night and commits sexual acts. I don't know the legitimacy of this but praying to god and reading psalms 91 over and over and calming myself down during the episodes helps tremenously.