Okay so I've been lax about clipping my bunnies toenails recently, and I feel really bad. But when I went to clip one of my bun's nails, two of her toenails (the ones on the back feet the smallest ones) looked like this. She usually has fairly pale nails but there's these black lines and kinda of an indent down the middle of these two nails and I don't know why. Can someone explain?? All the other toes look fine.