Auto immune thyroiditis also known as Hashimotos .Are those results recent ? 50mcg is a starter dose ,you need an increase to bring TSH to 1 or below and to raise FT3 ,FT4 to upper half of range. I do not know enough about antibodies but I do not think the levo will affect them.Going gluten free may help.
You are possibly having a Hashi's flare - where you may have the symptoms of being HYper rather than HypO. Lots of information on this forum about Hashimotos - if you feel well enough to search. Doubt your Doc will understand judging by the hundreds of posts. Reducing your dose is not the correct thing to do as you can see from your results.
Being gluten free will help reduce anti-bodies. Have you had B12 - Folate - Ferritin - VitD tested ? They all need to be good in their ranges.
Maybe increase iron to twice a day with a 1000 of VitC to aid absorption. B12 injections need to have GOOD levels of Folate as they work together in the body - so take a B complex to increase your Folic Acid/Folate. I would increase the VitD during the winter months and support if with VitK2-MK7 and Magnesium. Re-test in the Spring.
B12 injections - do you have any neurological symptoms ?
Click onto the above link where you will find many previous discussions here about a Hashimotos Flare .... you need to be well informed before you see the GP - and of course the Nurse and the Receptionist
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