My baby ball python Maxwell has some very strange feeling scales on his belly, but only when you start down at his tail and softly run your fingers up his belly towards his head, it feels like my fingers catch a few scales along the way and pulls them up slightly, also if he is slithering on a surface and you pick him up or scoot him backwards you can hear the scales catching on the surface and coming up a little bit, its kind of hard to explain, its kinf of like a hangnail. but with scales. there are a few of them. im new to snakes, Maxwell is my first one, so i dont really know if this is just something thats normal, or if hes got something wrong with the scales on his belly. thanks in advance.