Hello, this is my first post. I have been suspected of having an under active thyroid (no diagnostic though). My TSH is 1.364mU/L and my Free T4 is 8.2 pmol/L. I have been taking Levothyroxine (100mg) for about 6 months now, I have put a lot of weight on and although my symptoms have improved I can't be sure if its the tablets as unfortunately I also have B12 deficiency and 6 months ago I started taking supplements.
I am unsure where to go from here, can anyone advice me?