Eevee's Sudden Hair Loss

Just a week ago, I was sitting at work with Eevee, playing with her ears, because she likes that, and I noticed some clumps of fur come off the tips of her ears, with dead skin attached. I was like "WTF?" I felt around and the tips of her ears felt thickened. I took her home and ran a brush over her ears, and a LOT of clumps of fur came off.

Over the past week, she's lost enough fur that I can see a few small bare spots on the tips of both ears. There aren't any sores or anything, but I notice she tries to turn her head now when I mess with her ears, which is unlike her. I'm freaking out about this whole thing, because she's never had hair loss of any kind in her entire life! I've obviously quit taking her to work for now, and Shippo is showing no signs of hair loss.

We've got a vet appointment tomorrow so hopefully we can figure out what's going on. Until then, I guess I'm just needing some encouraging words. Eevee is my heart dog, and she's always been incredibly healthy, so I guess I'm a bit scared. I talked to a few people and have been told a number of things, like it could just be a normal shedding thing (although in my many years of having Eevee I've never noticed this during her shedding), allergies, something fungal, irritation from touching something, and even mange (Scary)!

Good vibes needed please! I'll keep everyone updated.