I was suffering from clinical depression and was on Effexor. I don't know if that had anything to do with it.
I remember the first time I had that experience, it was really scary: you can't move your body but you hear weird sounds, see shadows moving and feel tremors and as if your room is shaking. It seems very real and you feel a sense of danger. In my mind I was trying to scream for help but I couldn't open my mouth to yell.
It lasted for 5-6 minutes per episode (my estimate only as I have no real way of knowing the duration of the paralysis) until you fall back asleep. Sometimes, it happened two times per night.
At one point, you get used to it though and every time another episode occurs you're just thinking "sight... Ok, it's this shit again... just enjoy the weirdness, nothing will actually happen."
It lasted for several months, on and off. I eventually stopped taking the medication but by that time the sleep paralysis episodes had stopped so I don't really think it had anything to do with the medication.
ADVISE FOR PEOPLE THAT NEVER HAD SLEEP PARALYSIS: If you get that for the first time don't panic, you'll hear sounds and see things that will scare you but you won't get harmed, try to remain calm. Eventually you'll fall back asleep.
"If ye love wealth better than liberty, the tranquility of servitude than the animated contest of freedom — go home from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains sit lightly upon you, an