My husband has been on PD for about a year. Over the last several months he has had a lot of joint pain, particularly in his hands, back and hips. He has seen an Arthritis Specialists but was not diagnosed with Arthritis or anyhting else for that matter. He was on Lipitor which can cause muscle pain but he stopped using that several months ago. He is a little better in the last few weeks but not enough that would lead us believe it was the Lipitor. He also has some hard deposits in the palm of his hands. Both his Primary Physician and Nephrologist have not been able to come up with anything difinitive.