When I get tired of having Pd, I change its name to "Stubbed Toe." Therefore, if anyone here hears me referring to my "Stubbed Toe," I am merely tired of having Parkinson's disease, and that is my form of denial. Again, like you, I don't know why.
If you are looking to get into clinical trials you might want to look at the Pipeline website.
http://www.pdpipeline.org/index.htm
michael b.