I have had subclinical hypothyroidism for years. For the past 2 years I have been wanting to get pregnant and even though I had regular periods, I was put on clomophine 50 for two cycles. After that my amh dropped to 1 and fsh increased to in the 20s. My period stopped for the first time ever. I was put on levothyroxin 50mcg and period came however during the 2 years on Levo I was told by the endo I had fine levels even though now I have learnt I was not converting T4 into T3 but rather into RT3. My T4 was at 19, T3 at 3.6 and I also developed irregular periods while on the T4 only treatment. Last week I did bloods and my RT3 is 37 or 466pmol. So I started taking 7.5 mcg of T3 leonthyonine and dropped dose of levothyroxin T4 to 25mcg. My morning saliva cortisol was low at 11.
My question is - Are my irregular periods due to the high RT3, as a result of being on T4 only meds for 2 years? And am I on the right meds combo T4/T3 now? As I am trying to correct (lower) the high RT3 and get my periods back to being regular again!