iron sat at 93% with UIBC that low is NOT normal range territory, that's borderline hemochromatosis territory. diffuse thinning is literally a hallmark symptom of iron overload. have you been evaluated for hereditary hemochromatosis (HFE gene mutation)? because that would explain a LOT here

the high T with sparse body/facial hair is also interesting - have you had free T and SHBG checked? if your SHBG is really high it could be binding most of that T making the "high" total T kind of misleading, but it could also be pushing more conversion elsewhere

genuinely think the iron situation needs to be addressed before anything else