Sorry to hear about your problems with Parkinsons disease. Most notably we have seen actors Michael J. Fox, Katherine Hepburn, Pope John Paul II and Muhammas Ali struggle with tremors that afflict more than 4 million people.
The University of California, Sand Diego done a research on this disease and used 80 patients in their early 60's. Forty patients were given a placebo while the other 40 were divided into 3 groups and give daily doses of CoQ10 in amounts of 300, 600 or 1,200 milligrams.
Thre study revealed those with the highest intake of CoQ10 had a 40% reduction in progression while the other two groups also showed great improvement. None experienced any problem with any of the doses of CoQ10.
I thought this might be some information helpful to you. Discuss with your doctor. I have taken Coq10 daily for several years.