Was she checked for Cushings? That would def be a possibility. Thyroid test? My Wylie has Atypical Cushings and hair loss was one of his most obvious symptoms. Testing for Cushings can be a long, tedious process -- but it's treatable...so it's worth looking at. Usually the very first test to run is the Cortisol-Creatinine urine test -- this test doesn't rule in Cushings, but it can rule it out and tell you whether you need to proceed w/ the next steps for testing.