During the past week, my leg pain has also been increasing. Our situations sound similar. I'm only 45, been on hemo for 2 years. My potassium and phosphorous are good levels, but pth is high....My legs have been aching so very, very much. I could barely walk up the stairs the other night. I really hadn't thought about it being related to the pth, I thought perhaps it was ill effects from the cramping I had during dialysis. Now, I'm thinking I'd better talk to my neph about it. My appointment is next week. I'm putting it at the top of the list.