I've had PD for 30 years and didn't get tremors until about 5 years ago. I work out every day for about an hour, I play music every day for at least an hour, usually more and spring, summer & fall I spend a few hours every day in the yard. All 3 help me tremendously. The key is to keep moving for me. I think there is a huge link between music and working out - at least for me it is. There are so many different symptoms between every one I can see why it's really, really hard to diagnose!