My little Pearl was spayed 5 days ago. She has no fever, the incision site looks fine, but she is walking funny. She draws in like a person who is cold. I have never had a female cat, so I don't know if this is normal. She is eating and is doing everything but playing rough with the 3 boys. They seem to know she is not up to it and are being very sweet to her. Does anyone think I should be concerned?