I am 66.jUST DIAGNOSED WITH ET.DR AT UAB in Alabama told me AVERAGE life expectancy is 4 years.That seems a little pessimistic from what i read.Any thoughts?I am very active and dont smoke.I do Crossfit 3 times per week.Also i have felt somewhat fatigued .Is that from et or hydroxy treatment.Thanks Bobby Boone

Summarized question: What causes severe fatigue while suffering from essential thrombocythemia?