I switched from 87.5mcg of levo last November to Armour and I am currently taking 1 grain. After a bumpy start, things really improved and I felt well over the Christmas period. My TSH in December was 3.9 (range 0.99- 4). Over the last week or so I have felt gradually worse and my latest results have come in leaving me feeling confused. My TSH is 2.0, FT4 11.8 (12-22) and FT3 3.8 (3.4-5.8) my last FT4 and FT3 was 19.1 and 4.1 respectively. I am confused as to why my TSH hasn't gone up if my T4 and T3 has dropped. Also the equivalent dose of Armour 1 grain is 75-100mcg of levo thyroxine, therefore if I increase armour I will be taking way more t4 than I could ever take previously without going hyper. Any help would be appreciated.