Weird fur loss thing...

[bendyfoot]

So Heidi's had this little patch on her side, near her belly, where the hair is coming off. The vet has seen it, twice, and hasn't been very concerned about it, just told us to watch it. I'm pretty sure it's slowly getting bigger. There also is a smaller patch on her left shoulder, and there seems to be one forming on her back. She also has some hair loss on her left eyelid...I noticed one day a reddish scab, which turned yellow the next day, and now fur seems to be generally thinning on that eyelid.

The thing is, the skin is not red, bumpy, flaky, and Heidi doesn't seem bothered in the slightest by it. I'm stumped. I'm not super-concerned but I don't like the fact that a new one is coming and I'm starting to convince myself that she has some kind of weird mange I'm about 85% ready to ask for a skin scraping, but...I dunno, what do you guys think?