Sleep paralysis is a medical condition and should not be overlooked as a spiritual occurrence.
The body loses feeling and can twitch in a trance state but you can break from it easily which is why people have trouble entering trances and staying in them. Deep trances may take a little more time to be brought around entirely, but it is never impossible.
Even the well known spirit known as a hag among other names doesn't entirely paralyze you, but it is more like something invisible is literally sitting on you, pressing its weight on you, preventing you from getting up. Big difference because you can still move and feel your body, it is just as if someone were holding you down.
So please, go to a doctor. This is not spirit or magick associated.