seeing ghosts ( sort of... )

so this has been bothering me for a little bit but ever since I went on a run about maybe 5 days ago 

close to the start of the run I swear I felt the presence of my old friends from the hospital as if they were running with me, idk how to explain it other than presence because its not like I really saw them, but I could like...feel them iykwim. i cant lie it mad me happy but I'm kinda scared that I'm going to go over the edge if I haven't already

(similar type thing)

(notice, although I'm saying "he" its still just me and we both refer to me as we if that makes any sense)

a similar thing happens with the voice inside my head where he just kinda like "sits" there right behind my left shoulder like some devil ether type shit where his presence just is always there watching, haunting me 

but the more time passes I think that he is the sane one and I'm the one losing it, alot of times he sounds more reasonable than me so that begs the question

Who is the real me?

and what do I do if its not me?

do I just fade into the back?

should I just die?

yes