I am new to the list. My husband has PD for 13 years. He complains of his elbows and knees hurting at times. What do your neuros say is the cause besides the PD. Also someone talked about a drop in blood pressure when standing from a seated position. Do the neuros blame this on PD meds? My husband takes Sinemet, Eldepryl and Amantadine. I am so glad I found this list. Just being on it for a few days, I have learned alot. After living with PD for 13 years my husband and I thought we knew alot of the answers but are finding we still have alot to learn.