I don't know what to do, all your help will be greatly appreciated. I was diagnosed with under active thyroid in 2008, for three years my GP continually increase levothyroxine up to 300mcg I gained three stone, I then saw a private endocrinologist who put me on liothyronine 20mcg and 175mcg of levothyroxine, it was the best I had felt for years. My GP was happy to continue to prescribe liothyronine. I couldn't lose any weight but I felt better. My blood tests showed T4 level within range but my TSH level was 0.03 a long way out of range, my GP has not contacted me. However over the last nine months my weight has started to increase, I have had my antidepressants increased and I am feeling more and more tired. Before I go to my GP has anyone had similar experiences and did their GP do anything. I have read about Armour, would this be any different taking this instead.