Hi Pam!  Jack had a front limb amputation 2 weeks ago.  Because he has an e-collar, he has left his surgery site alone, but for the last couple days he has been interested in chewing his back leg.  At first it was just a red spot and anti-bite spray kept him away from it, but last night we were going to bed and Jack's bed had blood on it - he had chewed a wound in his leg (his ankle bone area).  He has chewed this area before on and off since he was a puppy due to dew claw removal.  He had had it done before we got him and I'm not sure where he had it done, but I don't think it was the best (still feels like there's a bone in one leg whereas the other feels normal).  Could this be bothering him again?  Is leg chewing a sign of anxiousness?  Should we be worried?  Thanks!