I have similar issues. I rely on Add meds which is somehow related it’s like my metabolism and attention shuts down with out them. . I wouldn’t have even known what I know and just accepted it, had I not had the stims to keep me functioning. I think in the past my dhea was normal thou. I gave up for a long time and have just been working around this issues instead of focusing on them. Also vitamin D might have made a difference, not sure. I plan on getting thorough bloods soon and trying to figure it out again.
I think the reason my thyroid always comes back normal is my body just turns down my metabolism to use less to compensate long term. If that’s possible. I also have nodules which I didn’t find till my late 20s on my own when I asked a doctor to look. Honestly I’m from NYC and you have to be your own doctor. How can I go through life and no one palpated my thyroid.