My hedgehog Toffee is about 10 months old. A few weeks ago she started losing all the fur on her belly - she leaves a trail of these little hairs everywhere she goes. I wasn't super worried because a lot of people online had reported similar things and when not paired with quill loss they all indicated that their hedgehog had just grown new fur on their bellies to replace what they lost. But the past week or so I've been finding a quill or two a day in her cage. I don't think it's mites because the quill loss is so minimal, but I'm not sure. Any ideas?