Dear Peony, I'm sorry to hear you're having such a difficult time. I wish that cycling had the same outcomes for everyone, but, as with everything else with PD, individuals respond differently. I think (guessing here) that part of my success is due to the fact that I started cycling less than a year after my diagnosis so I was still not too heavily impacted from the disease. I'm doing quite well, but the disease is progressing along its diabolical path, albeit slowly. * I found my leg cramps and foot curls disappeared with cycling through the pain but maybe mine weren't as miserable as yours. Everyone has a different mountain to climb. That we climb at all is nothing short of heroic in my book. All the best.