I've had sleep paralysis roughly 15 yrs now. When it first started, I had an average 8 episodes a night. You could imagine how tired I would get. At first, my hallucinations were of the generic Satan ( horns, red, flames,etc). They quickly transformed into aliens. It is always the same hallucination now. An alien is standing in my doorway looking at me. Occasionally, it'll walk to my bed but I am usually getting myself out of the paralysis by time it reaches my bed.

Any thoughts what this could mean?