Hi ive been taking a starting dose of 50 mcg of levothyroxine for 4 weeks now. Ive been off sick for last 4 weeks after diagnosis as i felt awful as my tsh was 150 (0.4-4) ref range sorry dont remember other results. Gp was funny with me when i asked for the last 2 week sick note. My question is do you think there is any point going back to my gp and asking them to up the dose as so far its made no change in my symptoms. Im due to go back to work next week and dont feel any better than i did. Im concerned i gp wont up the drugs and wont write me a sick note either. I just wana feel normal realistically how long does it take please?