ehhhh I think you'll be fine. It's a very normal thing to experience hallucinations, and I'm not referring to those bs hynogagic auditory hallucinations that you hear internally as you fall asleep, I mean externally as if there were someone right next to you.
I'd recommend you take into consideration paranormal shit - I believe in that and franlkly I don't see how any sane person who ascribes to propositional logic and staves away conformity doesn't believe in that, after all those are pretty much our axioums that drive us to be a part of this community.
There are to whom that has happened to - whether it be glitch in the matrix or people who have been told by their psychiatrist that that's normal if they're not getting adequate sleep or if their mental health is temproarily poor. I myself have heard an external voice while no one was their. Not internall as in within my head like when you're imagining audio in your head, I heard it externally like you hear real voices, except there was no one there. I'm fine now. I've also experienced a shit ton of other crap but I'm fine.
whatever you do, stay away from (((P$ychiatry)))