I am desperately in need of some answers. I was diagnosed as hypothyroid in 2008 and put on Levothyroxine, after 2 years I suffered a fibs and was taken off the med. 3 years later this march 2011 I was hospitalized with a fibs and a heart rate of 170 and after 4 days diagnosed as being hyperthyroid and since march 2011 have been on methimazole (anti-thyroid meds). My starting dose in in March 2011 was 10mg, one month later it was increased to 20mg, one month later my tsh level almost non existent and my FT4 0.7 indicating that I was hypo, I then decreased my dose to 15mg, three weeks later my FT4 at 0.6 and tsh at 0.063. I then decreased my methimazole to 10mg. Now, my most recent results came back at FT4 0.8 and TSH at 4.983 so I have decreased my methimazole to 5mg. I am so confused as to why lowering the dosage is not bringing me out of the hypo state. I am so worried as my hair is falling out like crazy and i feel very bloated and sluggish, and very tempted to just stop the methimazole. Can anyone help? I am so depressed and feel like crying. Especially seeing my once extra thick hair falling out like crazy.