Hi, I was wondering if anyone could possibly advise or share their experience... I am on 75mcg of levo and have been since September. In November my TSH was 0.75 (0.27-4.2) and I was feeling pretty much back to normal. I've just been restested this week (because I started taking a herbal supplement for PCOS 6 weeks ago) and TSH is 1.3. Would this be a significant difference or is that amount of fluctuation perfectly normal? I have been feeling a bit tired, but I have also had a busy few weeks so it's hard to tell why. I didn't feel good when TSH was 1.9 though, and the doc agreed then that we'd try and keep it below 1, but does 0.3 matter?! It's virtually impossible to get T4 tested (and T3 is totally impossible) so I haven't got much to go on. Any thoughts would be much appreciated, thank you.