I recall your friend, Trw - she didn't have antibodies, though, so she wasnt' definitely, positively hypothyroid, she might have been euthyroid sick - low T3 from something else (stress, trauma, you name it) that never reset itself. Treating her with Wilson's wasn't going to absolutely positively make her feel worse, like it did for you. I remember your posts from months ago, you felt awful, and you weren't getting any better.

The fact that T4 itself serves a purpose and is necessary for our health and functioning seems to escape notice. As Huxster pointed out, it's the T4 that gets into your brain and is locally converted to T3. Yes, you need T3, but you need T4 - otherwise you'd have felt just wonderful on 75mcgs of T3.

If T4 levels were so unimportant the primary test for hypothyrodism wouldn't be a FT4. Prior to the introduction of exogenous hormones, it is T4 that most strongly influences TSH. Low T4, high TSH. T4 falls long before T3, typically, and replacing it can make a world of difference. I know, I had low T4 and high T3 when I was diagnosed. A doctor who doesnt understand T3 supplementation is often necessary is not a doctor you want to have treat you. The same goes for T4. We need them both.