So, my cat, Binx, has gotten a bit weird lately. For some reason when you touch his lower back he begins to compulsively lick his shoulder, it is hard to tell if it hurts him or not. His back always convulsed, most cats do that. But this has only just started a few weeks ago. I tried looking it up online but because it was so specific I didn’t find much and what I did fine it was all over the place as to why, some said stress, some said sexual frustration, I really don’t know. So anything you can tell me will help. Thanks.