I think it was Vegeta's post that confused me... I addressed you because of the melasma, the low cortisol is a new one on me, somehow that doesn't sound right to me, since copper is contained in melanin, what does make sense to me is that someone with AF which has high copper might develop it. I also read somewhere (but can't find it again) that other signs of AF are darkening of elbows and knees, which I suddenly began to have many years ago, but I also noticed mine sometimes are lighter, and lately they're very dark again. :(