Joyce,
Others will probably have some better ideas but I am thinking an Endocrinologist might be a good place to start. My daughter threw a fit for a long time, for me to see one and finally I went just to please her and found that I have Hashimoto's Disease (advanced).

The Thyroid Hormones can do all kinds of things to you and as I recall, hair loss is a biggy problem with thyroid conditions (though not one that I experience). Also - thyroid conditions are common especially amongst us women.

That is just my 2 cents for what it is worth - based on my own experience.

Oh and by the way - my primary had told me that my thyroid was just fine - but I insisted on the specialist who ran test that he never even considered. The autoimmune antibody (or something like that) was elevated out the wazooo on me - and that is HIGH !!! LOL

Best of luck in whatever direction you go !!!
Snoods