I used to have this a loong time ago.
Coincidentally? I today read a peice, it wuoted u if mich psychologist who said sleep paralysis upon waking is because the body is still in REM sleep and when in REM sleep your skeletal musckes are indeed? Paralyzed . He also said we dream while in REM. I used to awaken in such severe pain and i couldn't move. I used to keep emerg meds and a pop where i could manage to grab them without moving. I cannot remember taking them, though. I was on a completely different rx protocol then, also.
I had completely forgotten about that lovely aspect!! I really do seem to be hugely improving