Hi I am quite new I would like to say hi to everyone first I have mpn and struggle every day I get terrible pains in my feet hands knees and ankles I am about to have a bone marrow biopsy this Monday and have been getting bad pain so am expecting to be told it's progressed so as yo can emagine am worried on top of that when my feet touch the floor they turn blue have an vascular ultrasound next Wednesday and don't no what's coming any advise my name is Stuart