My TSH is all over the place, goes from below 1 to 5, back and forth. I am taking no meds as the doc has no idea which way to go. I think its my hypothalamus causing the fluctuation, and it is affected by the Lyme and other things like CFS and chemical/mold exposures, infections, etc. I am hot one minute/cold the next. I read somewhere that when the body starts to rebuild/repair itself the levels will become normal.