BCPS can effect your Total T4 level, but not your FT4, at least not directly. The estrogens bind to thyroid hormones (TT4) and as a consequence can lower your FT4, which would mean yes, you'd need more thyroid. I would surmise that if your FT4 were lowered your FT3 would also come down and your TSH would likely go up.
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A foolish consistency is the hobgoblin of little minds.
Hi Benzi, my Endo is doing the same thing. When I was on the pill, my TSH was 4.55 and my free T4 was high, no Free T3 taken. We raised my dosage of levoxyl, went off pill and now my Free T4 is in the upper 3rd, my free T3 is in the lower 3rd and my TSH is 0.05. So my endo is now lowering my dosage back to what I was originally taking when I was on the pill and I am trying to figure the logic behind it. I thought maybe his logic was that the original dosage was the right dosage for me, but the pill screwed it up. I can't understand why he wouldn't put me on the middle dosage between the 2?
It sounds to me like the 'logic' is that your TSH is suppressed. It's faulty logic. If your FT3 is low while your FT4 is high it's a sign you're not converting well. You might do well on a little less T4 with some T3 thrown in (cytomel) or a complete switch to Armour. You might also benefit from another (better) doctor, IMHO.
Nat
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A foolish consistency is the hobgoblin of little minds.
