Im on 100mcg of levo and my tsh is at the higher end of normal range. I generally feel ok,just problems losing weight despite exercise, lumps on achilees tendons, pains in feet and sluggish bowels. I have a script to increase to 125 mcg, but scared to start taking this. I have been having this pounding heart beat in the evening and at night when trying to sleep. Its virtually normal in the morning again. I take my tabs in the morning. Could it have anything to do with sugar intake which is higher in the evening? Could it be. Because I need more levo? Im fed up going to docs and feeling like Im wasting their time. Any info appreciated.