Just about to see works Dr for my routine check up. I have sciatica. Have had for a good year in both legs. Is my ET seen as a chronic disease. I know it may seem a silly question but I'm fairly new to all of this. I'm still waiting for a response from my haematologist about treatment. My platelets had risen to 901. I have migraine and tiredness. Can't work out if it's because I work 12 Hr shifts. My age or symptoms. I'm ok in myself and deemed low risk. My sciatica is still painful but I managed it with a tens machine and cocoadamol. Soon as I try areobic high impact exercise everything hurts again. I'll see what happens.