I'm not sure if this is the correct area to place this, but if I am wrong, please let me know. In any case, our baby kitty, Biko, has been limping since Sunday morning. We took her to our vet, and they took x-rays, and had a good look at Biko's right hind-leg, which is where she is limping, and they couldn't find anything. The vet prescribed some pain meds for Biko, but she is still limping today, and I am wondering if anyone can help me in knowing what this is. We have two other cats, Munchkin & MsKitty, and, while they play rough on occasion, I doubt that either of them could have hurt Biko. Is limping a sign of anything more serious ?