Because you have Hashi's - Hashimoto's Thyroiditis, known to UK doctors as Autoimmune Thyroiditis.
Have you ever had your antibodies tested? If not, ask your doctor to test them - but don't expect him to understand the results.
Also as your levels have risen to 'hyper' levels (not true hyper, that's not possible) then you don't have to confess that you're not taking your levo, do you. He won't know.
Ah no! That's hypO, not hypER. A high TSH is under-active. A low TSH is over-active. You are now pretty hypo because you haven't taken your levo.
But, I still wouldn't tell him you haven't been taking it, because it was only a small dose, anyway. Pretty certain you would need an increase even if you had been taking it. Just act dumb, I would.
Although, having said that and thinking about it… What are the exact levels that say you're 'over-active'? If it's just a TSH, then that doesn't mean much.
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