Question about TSH

Diagnose with Hashimotos

When I was taking 50mcg, my TSH went to 0.007 and I lost 8kgs. I took 25mcg and 50mcg to fix it and it finally went to about 2.1.

But stuff happened (environmental and food changes), and i gained a lot of weight, resulting my TSH to go to 9.

My doctor adjusted my dose to 37.5mcg and I still am (probably) the same weight, I feel i’m mentally not very alright and my hair isn’t all that great. Is there a good chance 37.5 isn’t working for me? I can only get my bloodwork done in November and can’t find out now.