Azuribean

My chinchilla just got back from the vet after they sewed a large cut on his hind leg after being attacked by a stray cat that managed to get into our house through an open door. While the wound is closed, my chinchilla keeps running around and trying to jump around his cage. I'm afraid that he'll somehow reopen his wound and it'll cause him greater pain. Is his jumping around a sign that he's feeling okay? I'm unsure about what to do to keep him from jumping and trying to cimb the cage bars. He just won't stay still.