Is Parkinsonism an early stage of Parkinson's? That is my most recent diagnosis. All the drugs I've tried -- sinemet, neurontin, amantidine, etc -- have backfired and resulted in a wild exacerbation of all my symptoms. In many ways I look like a classic PD person but not in others. I had a DaT scan which was inconclusive. Now I'm on zonisamide. The shaking has gotten progressively worse over the last two-plus years, I have night disturbances (screaming etc), constipation and a few other PD things. The resident I saw at UCSF said the only thing I can do to slow the progression down is exercise, which sounds like if this does not look exactly like Parkinson's today it will soon. She also said she never heard of anyone suffering from an exacerbation of symptoms from the drugs! She ought to read this message board!