I've been having the same repeating experience for about three years now, roughly twice monthly. I wake up completely paralysed, aware of my surroundings but unable to move, and I see three distinct humanoid figures standing around my bed. They're tall, thin, with disproportionately large eyes - classic 'grey alien' description really.
The experiences last maybe 30-60 seconds of subjective time, then I can move again and the figures vanish instantly. There's never any pain or discomfort, just overwhelming anxiety while it's happening. I've researched this extensively and I know it matches textbook sleep paralysis/hypnagogic hallucinations, but here's the weird bit - I occasionally find small unexplained marks on my body after episodes. Tiny triangular marks, usually on my arms or legs.
My rational brain says 'sleep paralysis, stress-induced hallucinations, you're doing the marks yourself unconsciously.' But there's a part of me that wonders if these are actual abduction experiences being suppressed as nightmares. Has anyone else experienced similar? How did you determine whether it was paranormal or medical?