L.L.
I don't want to alarm you but my sister-in-law (32 years old) was just diagnosed with alopecia (no clue how to spell that!). She lost all of her hair, including eyebrows and bodily hair. They are putting her on steroids next week to help the hair grow back.
Again I hope that doesn't scare you but her symptoms sound the same as Katrina's.
Lynsey