I recently had a fasting blood (no meds for 24 hours) late morning (no early appts with this endo!) and my TSH is marked at low.
My ft4 is15.7 (range 11 to 26) and ft3 is 4.7 (range 3.9 to 6.8). I know t3 can suppress TSH, I'm just surprised my ft3 isn't higher. I am generally much better on t3, which i tolerate ok now i split it into 2 doses. I just wish i had more stamina.
I stopped supplementing b12 for a few months and it went from over a thousand to 457 so I'll start that again.
I'm on 50mg levo and 15mg t3.
Has anyone managed to get their ft3 levels up higher with a suppressed TSH? I'm supplementing and other vitamins and iron are in a healthy state.