Last year I was (finally) diagnosed with what was considered "mild" hyperthyroidism, given a low dose of methimazole, and began feeling much better than I had in ages.
This past October, my new endocrinologist halved my methimazole to see how my TSH would do without the full dose. The past couple weeks I felt the same old symptoms popping up again, so I asked for a blood test, (just checking my TSH) and it fell within a normal range (1.2 which is only slightly different from 1.4, what popped up with my blood work in October.) I was told I could continue back on my normal dose and I'd just be watched, but why would I be getting hyperthyroid symptoms again? Is it common to get the symptoms when you cut back on the medication without your TSH really changing much, or could my thyroid make me feel "normal" if it runs more towards 1.4 than 1.2? Should I ask for t3 and t4 tests as well?