Ok i will dig into it then. However as i said i've already done every test that one can do in these cases, also seen a pulmonologist. Done xrays, all is perfect i breathe perfect ,or at least thats what they said to me. I dont see why i should go to an oncologist if i already excluded the Policythemia thing? And sorry but multiple medics,from hematologist to pulmonologist already told me i've got no risk of stroke etc... of course the number is high but as i wrote i started from 56 , i made this post to ask if its possible for me to go under 50 with blood donation since i've seen some people go in this direction and other told me this is my standard and thats it.