I need to know if i might be pchizophrenic? Ok, my grandmother was psychizophrenic-paranoid. I am not thinking people are after me, but I do think i might halluciante.  Since I was twelve years old i pretend i am talking to someone who is not there. IT is like role playing, I carry on conversations with them and kind of an actual life. I change them all the time too and tehy are always personas i get from off of television.  Am i psychizophrenic because i talk to people who arent there.  But the thing is i know they arent real and when i dont talk to them for a while i miss them.  But it is not like they talk to me, i talk to them and i make up what they answer back-like roleplaying.  So is that actually halluciantig or is that just role playing. I am really worried because i dont want to turn into my grandma.
Please help

Summarized question: Is schizophrenia hereditary and is talking to imaginary TV personalities a sign of it?