We'll they may be reluctant because impaired social and occupational functioning is a requirement for a sz diagnosis....you can have all the other symtoms but if you're not functionally impaired you don't have sz.

Plan b of course is to get another doctor and frankly I would make sure to rule out medical causes it sounds like a very unusual case that you recognize the voices as not real and aren't getting caught up in anything delusional. I'm having something similarly unusual and want to rule out temporal lobe epilepsy and like you initially my voices did not stop talking ever it really impaired my sleep but then I went into remission and now I have relapsed but I'm only getting sounds it's very odd. It's three years out for me and my intial episode was characertized as brief psychotic disorder by one doc and simply psychosis by another.

I'm wondering though why you want the sz diagnosis? If you've been on antipsychotics that's really the best they can do and about a third of people are treatment resistant. They don't treat psychosis and sz any differently.....