Harley, I don't know if this will help, but it is a disorder that has been associated with L-dopa.

It will be interesting to see if other are experiencing what you are experiencing. Maybe they will have some advice for you.

Excerpt:
"Other mental disorders, such as bipolar disorder (manic-depressive illness) and anxiety disorders, may occur in people with Parkinson's, and they too can be effectively treated. However, some Parkinson's medications may worsen mania in persons with co-occurring bipolar disorder. The prevalence of bipolar disorder among individuals with Parkinson's is unknown, but people in treatment for Parkinson's should be alert for symptoms of bipolar disorder. Bipolar disorder is characterized by intense mood swings and changes in behavior. For more information on bipolar disorder and other mental illnesses, contact NIMH."

Source:
http://www.nimh.nih.gov/publicat/depparkinson.cfm

Carolyn