I am 39 and ttc. I have an underactive thyroid and following a TSH of 2.75 (T4 of 17) a couple of months ago, my dose was increased from 75 mcg to 100 mcg.
My new test is showing TSH 0.19 (range of 0.4 to 5.50miu/L).
T3 is 3.7 (range of 3.10 to 6.80 pmoL)
T4 of 19.4 (range of 12.00 to 22.00 pmoL)
So now the GP is worried TSH is too low and has ordered another test in a month in case it drops further.
Strangely I am still showing some hypo symptoms including tiredness, coldness and dry skin near my eyes (I am on vit D, vit B and ferrous sulphate and was shown to be in range a couple of months ago).
I think this is still related to T3 issues but unsure (I had to insist on the T3 test after some brilliant advice on here by the way).
Thanks