Question

why sometimes we can't get up from bed sometimes we feel that something is holding us very tightly our body parts doesn't work?​

Answer 1

Explanation:

Tactile Hallucinations

One of the most often reported phenomena of sleep paralysis is a tactile hallucination, the experience of being touched when you are not. Many people describe feeling a pressure or contact, often sensed as if something (or someone) is holding them down.