I have psychosis but its still mild and I havent had any hallucinations yet that I actually thought were real. I have heard voices but its more like Ill hear a noise and Ill think its some1 talking and Ill check and noones there and Ill get scared.

I have heard of people actually seeing dead people I actually just watched a show about it and this girl saw a ghost that turned out to be a girl that died like 15 years before that. Im pretty sure that if your having hallucinations of your dead boyfriend and hes always saying the same thing thats on your mind then its probably not real.

Its probably not very common with schizophrenia but all kinds of hallucinations can happen so Im pretty sure its probably happened to other people. Im guessing you are going through a time of stress but Im sure its happened to people before.