Good work! I haven't had the thyroid experience, but have heard from people who were able to reduce and even eliminate insulin for type 2 diabetes! It's pretty amazing what the body can do when we clean it up sufficiently for it to work properly.
Major body cleansing (including lots of long juice fasts, pro colonics and liver flushing) have resulted in many long term changes for me. I no longer have achy joints, headaches, nightmarish periods... my eyesight has permanently improved by a full point... my skin is beautiful after suffering with "adult acne" and "rosacea" all my life... etc. etc.
Whatever your health goals, we are living proof that they are attainable. Congratulations on your efforts!