Thanks Susan for your input. I've followed MK's instructions pretty much to the letter, but when something like this happens, it's good to look over things. The vet mentioned increasing their calcium, and she gave me calcium glutamate to give him orally until we went back in.
About once a week I hear a *THUD* in their room, they like to jump from barrel to barrel(covered in outdoor carpet) and sometimes miss. Gangrene is what truly worries me. I will see what our vet says tonight, it if she doesn't give him an X-Ray, I think I will ask for one just for my own piece of mind. I love all my pets and this swollen finger is definitely concerning me.