My cat has long fur so I decided to take him to the vet to get a lion cut this past Friday. When I got him home he went into hiding but then started running around the house. By Saturday he seemed much better, but Saturday night he started licking himself over and over, vigorously for hours. I tried playing with him, showed him a cat video, and gave him cat nip. All these things worked temporarily but he then starts vigorously licking all over again. Is this normal for a cat to do this for awhile after getting shaved? He is three years old and I was told by the previous owner he gets this every spring.