I occasionally chat with a psychotic on another forum. I don't know what he's been diagnosed with, I only know he has been diagnosed and medicated in the past, but you dare not bring it up. Chatting with him you can see that either he's a constantly high raver (which is actually an alternate supportable theory) or that he has difficulty distinguishing between fantasy and reality. It doesn't sound like it's so bad that it effects his daily functioning, however. He has some pretty interesting views on history, the government, even reality. And supposedly he's writing a book over the latter.
A Schizophrenic's Guide to Reality (my title, not his)
God, I'm so buying that book.