Hello, I was diagnosed with ET in 2007 Jak 2 +. I am on Hydroxyurea daily for the rest of my life. I am so glad i finally found a place with people who have this rare disorder. I too have gained 25 lbs slowly over the years and i am tall and slender and not overweight until now. It has been a slow gain but NOTHING i do takes it off. I too am looking for help!!!!!!!! penny