Hello, I've just had my latest blood test results, and am seeking advice. Back in March I was taking 50mcg of Levo & my TSH was at 3.5 (0.27 - 4.2). I was hoping to get it down to the lower half of reference range (as advised), so Levo was increased to 75mcg. I felt much better, BUT, my heart was racing, and my next blood results showed I'd gone over-medicated - TSH 0.02, T4 30 (12 - 22). My Levo was reduced to alternate days 75/50, but it made absolutely no difference, so it was reduced again to 50mcg 5 x p/wk, 75mcg 2 x p/wk. This has resulted in my latest results where my TSH has remained at 0.02, my T4 lowered into range at 21.3. I have my Dr appt on Friday, and I'm fully expecting him to reduce me back down to 50mcg. However, I was completely surprised by the results, as I had started to experience underactive symptoms again - tiredness, weight gain, achy joints. Can over-medication do this? What if I go down to 50mcg and my results go back to 3.5 - will I have a case for trying again to get it down to lower half of ref range, or will I be stuck because my previous attempt resulted in over-medication? Any advice before I go to the docs would be most appreciated.