David - My PWP suffers a great deal from stiffness and cramps. He occasionally has a headache. Used to have migraines, but those have subsided a LITTLE bit. I think it is just one of the symptoms of PD. However, if they continue, you need to talk to you doctor, because it could be something else. I gave him a gift certificate for a massage for his birthday, and he felt marvelous afterward. Also chiropractic treatments could help. I'll probably get a lot of flack from MD's, but they are truly wonderful to relieve pain and stiffness. Best wishes, Jo Ann from Houston