After 10 years of PD my peritonium membrane has given up. I am now a member of the HD club. Am suffering a few problems with the switch: constantly tired and have occasional chest pains which are keeping cardiologists from going bust (but not solving....).. They can be excruciating at times (usually early morning or late afternoon) and only careful deep breathing seems to help. I learn from another HD patient that this occurred to him and it feels like you are heading for expiry! Can take a few months to dissipate. Anyone else had these symptoms? Now my potassium is also high and I thought HD removed potassium better than PD.