Harley..My ex wife was bi-polar, and she did bizzare things out of nowhere..The only bit of advice that I can offer is to look at your past behavior patterns and in the future for uncontrolable manias where you absolutely feel as though you were infallable, and could accomplish great feats..I think that the depression is a given for us parkies at one time or another, but my ex used to get manic like she was taking large doses of speed and laughing gas..For bi-polar disorder one has to have the manias, and this is what I would watch for