my poor baby has something protruding from his right back leg, you can see it when he walks. I noticed the other day his shell is starting to rub a red spot on his leg and when he walks, he kind of drags it. It has to be hurting him. Is it possible to trim his shell to stop the rubbing? Not sure if it’s possible to fix the spot. I’m awaiting a call from a reptile vet to see what my options are. He has free roam of the backyard and is very active.