Hi, Recently my Hanna has had some bumps of dry skin appear on her back. They make the fur even kind of lump up. They aren't red and she doesn't try and scratch them so I dont think they're itchy. They just look like bumps of dry skin. Any ideas what would cause this? Her skin has been a little flaky lately...maybe its just dry skin causing them? Thought i'd see if anyone had seen this before I got vet.