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Agree with bluebicycle, this is probably a question best vetted by a professional if it is more than a hypothetical question....
The site proper has some excellent info about Bipolar:
Bipolar Disorder Symptoms & Treatment - Psych Central
If you simply want an opinion, this is an interesting topic for me. I've been fascinated by the idea that possibly bipolar, schizoaffective, and schizophrenia may one day be merged into one diagnoses.
Apparently this isn't a new idea about schizophrenia -several articles where scientists found clusters of genes that can manifest as schizophrenia. That may be why there are different expressions in different people.
From the article,
Schizophrenia is actually 8 diseases, study says - CNN.com
"Schizophrenia is probably 80 different diseases," Raison says. "All psychiatric conditions likely share this heterogeneity."
Also here on Psych Central:
8 Disorders Instead of One? The Role Gene Clusters Play in Schizophrenia | Psych Central News
Maybe mental illnesses will be found to be all part of one big genetic spectrum...? anyway, blah blah blah.... I'm not educated enough in science or genetics to speak with any depth; just personal musings....