I'm only 15 so I can't really do that and the reason I don't want to tell my parents is because there all religious and they're gonna be like " oh it's demons"

I also expirence the sleep paralysis you were talking about here you hallucinate the hallucinations also happen during the shaking

No I rarely drink caffiene and when I do it's like green tea which doesn't have much caffeine

Not that I know of but my body doesn't actually move during the events