My sister was diagnosed with hypothyroidism many years ago and has been on levo since then. I don’t know all the history but she has had her dose reduced and is currently on 100mcg levo daily. She has recently had heart palpitations which were frightening for her and the gp put her on beta blockers. She also suffers from aches and joint pains among other things. She got tests done but even though she asked about t3 it wasn’t tested. She lives in Australia and has to pay for copies of her results so when she was told everything was normal she didn’t think to get copies. Her latest tests result (such as they are) are
TSH 0.81 (0.4-4.0)
Free T4 13 (9-19)
She didn’t know tests should have been done early morning and fasted and she had already taken her levo that day. I’ve advised her to get private tests done including the vitamin tests advised here.
Any advice would be appreciated