What you have is alopecia totalis. This form of alopecia often results in permanent hair loss--but not always. Even in extensive cases, hair follicles are still viable and the hair may grow back.
Although alopecia totalis is not always associated with internal problems, you should have a thorough evaluation for autoimmune diseases (like thyroid.) I'm not too impressed with your blood test results, but you need an expert opinion on them.
In all likelihood, you won't turn put to have any other diseases. Treatment for this condition is poor. Injection of steroids to stimulate eyebrow growth may be worth a try. There are other methods as well, which a dermatologist can review with you.
Meantime, a good resource for both information and patient support materials is the National Alopecia Areata Foundation, www.naaf.org.
Best.
Dr. Rockoff
In which way are you not impressed with the blood test result? Does it not make sense?
The overall thyroid function was classed normal with just the HA titre being out, or do you think that's a mistake?
A titer of 80 is borderline, and often does not represent a true abnormality. But you need to ask the doctor who drew the blood for clarification on this point.
Dr. Rockoff