I was diagnosed with ET/jac2 in June. I take Hydroxycarbamide 500mg one day and 1000mg the next, plus aspirin of course. My platelet count last week was 850. I have been in hospital twice in the last month with a fever of unknown origin, with temperatures of up to 41.5. As a long shot , I just wondered if anyone else has had a similar experience. My Haematologist doesn't think they are related, but.......you never know.