You might find a good vitamin B complex helps too.
But if you are taking vitamin B complex, or any supplements containing biotin, remember to stop these 3-5 days before any blood tests, as biotin can falsely affect test results
As you have Hashimoto's then hidden food intolerances may be causing issues, most common by far is gluten. Changing to a strictly gluten free diet may help reduce symptoms and eventually start to lower antibodies. Very very many of us here find it really helps and can slowly lower antibodies, improving symptoms
I am also on exactly same 100mcg T4, plus 20mcg T3.
On the advice of my endo, I take T3 in 3 divided doses (10mcg 6am, 5mcg at noon and 5pm) and Levo at bedtime (can be more effective & equivalent to small increase) More on my profile.
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