One of my cats had quite big surgery about six weeks ago. During the recovery he was stuck in a large pen wearing a surgical onesie. He really hated that and I could see that he was over grooming at the top of his legs. About two weeks ago he was finally allowed back outside into his normal life. I’ve noticed over the last week especially that he has been significantly over grooming, mainly biting and pulling rather than just licking. It seems to be mainly around his back including the area where the shaved patch meets normal fur. He’s also not washing the rest of himself properly, whereas he used to be fastidious. I’ve tried feliway but not sure what to do next. Any thoughts? Thanks