Pituitary and hypothalamus changes aren’t so easy to deal with.
Some sufferers (including Hillary, I think) try to rely on more ‘natural’ (rather than synthetic hormone) methods of control to their detriment.
What makes you conclude any of this? And natural hormones are often better anyway (including T3 as well as T4).
Again, you are talking about rare versus common diagnoses—and don’t actually sound like you know what you’re talking about.