I doubt I have neurological issues either as my hallucinations started when my bipolar really kicked in at around age 21.

Have you tried every single antipsychotic? I've been on seroquel Risperidone zyprexa saphris latuda and a couple of 1st gen antipsychotics and finally found Geodon which has been working pretty well for the moods and the hallucinations are not to the point where they bother me. Have you tried clozaril? It's supposedly the best last resort schizophrenia med. My pdoc insisted that I go on it but I refused. I'm stable and fine and in a relatively good place. I'm not in last resort mode. Plus I don't want the weekly blood draws or the awful side effects. But I know it has helped a lot of people.