Been taking Synthroid for 45 yrs. For several years taking 75mcg. 8/2021 TSH 0.13L,T4 free 1,4, T3 Free 3,1, T3 Total 99.
Based on those results the Dr. said I am on too much Synthroid and wanted it lowered to 50 mcg. I always thought you do not change meds based on TSH alone which someone here agreed with. I have continued on the 75mcg and just had blood tests 6/2022 and now, TSH 2.70, T4free 1.1, T3 Total 68L. I never had my TSH rise so much or the T3total go so low with no change in dosage. Based on the new numbers should the dosage stay the same? I def. feeling off, mainly pressure in my head, sort of dizzy. I am so confused