Hi Nadine,
This is a common complaint in thal minors and more so as they get older. Thinning hair and dry skin can be related to many other issues also, so it may be that it's thal minor along with something like zinc or iron deficiency, vitamin A and possibly D deficiency, under active thyroid, hormonal changes brought on by aging, to name some.
Your iron deficiency is likely related to blood loss from the ulcers and hopefully, can be resolved with treatment of the ulcers, so the iron supplementation may be temporary.
Thalassemia has followed migration patterns and appears to be spread around the world by explorers, soldiers, merchants, traders, sailors and anyone who traveled from the Mediterranean area. This spread it through Asia and Europe to a lesser degree, and was originally brought to the US by predominantly Italian and Greek immigrants. The coal mines of Appalachia drew many Italian immigrants, which would be the most likely source of the thal genes found in that area.