After years of feeling rubbish and several Drs appointments each year to complain I still feel symptomatic yet on 150 a day of Levo.....I finally paid privately for dio2 gene test which confirms I have the variation in my gene to convert. Anybody had any luck with Kings Mill Hospital at Sutton-In-Ashfield? GP has referred me today to that hospital. Hoping I get an Endo who is sympathetic/understanding of this DIO2 gene issue. If anyone has any advice or help it would be appreciated.