My cat Oliver has recently been favoring his right front paw. He holds it up when he's not moving, and limps sometimes (NOT all the time, as when he is rushing to the food bowl!). Two weeks ago, we returned from vacation and we're getting ready to leave tomorrow on a business trip. I examined him very carefully and could find no swelling or soreness. I'm going to take him to the vet to be checked out, but I'm beginning to suspect he may be "faking" an injury to get our attention or make us stay home. Is this possible?