How much does T4 lower when taking T3 only generally?

[Guest guest]

Ive read that when taking T3 only, that FT4 can lower. Is this true?

And if so how much approx would it lower if i was on 25-50mcg of T3?

TSH = 1.48 (Ref 0.35 - 5.00)

Free T3 = 5.9 (Ref 3.5 - 6.5)

Free T4 = 15 (Ref 9 - 23)

Now i do have Adrenal fatigue, low DHEA-S, low morning Cortisol and

high afternoon Cortisol, so i guess its possible that my low

Cortisol may have caused some of my T4 and T3 to look higher in the

blood than it actually would be and when i get Cortisol normal again

the levels might lower some.

But im taking Isocort in the morning, but want to get my T3 higher

to 6.5 or a bit higher.

So while on adrenal support i was planning on building up to 25-

50mcg of T3.

I dont think Armour is suitable for me as it looks like i dont need

any T4, just a bit of T3, but will i need some T4 when Taking T3? As

this might lower my T4?

Thanks!