You have an Autoimmmune Thyroid Disease called Hashimoto's. It is the commonest form of hypothyroidism. Treatment is the same for both.
Your TSH is above range and assume that's why you've been diagnosed.
I am assuming your GP has prescribed Vit D3 supplements as you are very deficient.
Your B12 is below range and GP should test for the intrinsic factor which would confirm or not if you have Pernicious Anaemia. He should do this before any supplementation.
Ferritin and folate need to be addressed and I will give you a link to SeasideSusie and you can read about how to raise vits/minerals.
Thanks for reply I have been taking levo for 5 years and the doctors and endos have changed my dose a bit. TSH when first diagnosed was 45.8 (0.2 - 4.2) and Free T4 10.1 (12 - 22)
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