Edit (just thought I'd expand a bit on the comment): Schizophrenia's a ridiculously wide disease, if you ever look at the symptom list in the DSM you'll see just how many symptoms are possible, personally I spent 2 years doing essentially nothing (i.e barely any social contact, no programming etc.) and only hallucinated a few times. The problem with treating schizophrenia's mainly the drugs that can help (antipsychotics) are a) expensive and b) really hard to comply with due to the side effects (personally I can easily sleep 12 hours a day due to mine and you're always at risk for tardive dyskinesia).
It'd be nice to live in a world where having a mental illness wasn't seen by a lot of people as a personal failing of some kind, but we're nowhere near there yet.