ive had the same hallucination! i was raped by my uncle as a kid and about 1 month ago i saw him and he raped me again. (and he is dead!!!) he died several years ago so i know it was a hallucination. i tried to call for help but i was frozen. i couldnt make a sound. idk if its a common thing for other people. it has only happened to me that one time. but i was so scared. i know how u feel.