For some reason my Dogue, Lu lu Belle, constantly chews on her paws. I have examined them to no avail. I don't see anything stuck in there like a splinter or a cut of any kind etc. Does anyone else have this issue? The skin is red from her chewing and licking, but it isn't broken or anything. She doesn't limp as if it hurts. She doesn't seem to be focusing on her claws either. She licks where her pads are and in between and appears to chew on her toes. I have never seen a dog do this. Thank you for any advice.