@sufferingcdn Here's a link to find an environmental medicine doctor who will probably help. I take Naturethroid which is desicated pig thyroid and it works fine. They have had some issues with supply, but you can call the company that makes it to find their distributors. You described a lot of low thyroid symptoms. I've had them too, and my antibodies were off the charts too until I had all the silver dental amalgam fillings removed from my mouth. Then they tested much lower and results could be read. The mercury leaches out of the fillings causing Hashimoto's according to my environmental medicine doctor. Good for you for advocating for yourself. Your doctors didn't help much, and I hope you find better ones. Levothyroxin does work, but the dosing is different. With natural desicatted hormone, you have all the components, and with Levothyroxin, it is used to make the other components.
https://www.aaemonline.org/find.php