I seem to have an intolerance to Levothyroxine, I have no known symptoms of hypothyroidism BMI 25, BP 115/54 Oxygen saturation 97% on Air, clinically euthroid 80 KGs. very active no weight gain, cholesterol 7.7, even though I'm now vegetarian....... but I've not been taking the med's due to, they make me lethargic, wake in the night with heart pounding, Endocrinologist suggests try different brands or Liquid, in case it's the 'fillers' in the tablets .....TSH61 FT4 6.1 anti TPO antibodies strongly positive.....any Ideas welcome.....of to France next week, so may not be able to reply, straight away