My MIgnon is 7 years old and he has a bad habit of chewing the end of his tail untill he like hits a nerve or something causeing him to go rigid but also turn in a circle i call it a seizure as thats the closest i can come to what happens it seems to be worse in the summer and our old vet who retired hasnt heard of this before and said my boy seemed healthy it happens randomly he'll start frantcily chewing on the tip of his tail then it happens affterward. if you react he'll ve you a look like "what?" i'm not sure if any of your cats have had this behaviour if so do you know anyway to prevent it? is it allergies ot r should i disscuss with the new vet? it dose leave scaly spots on his tail and thinns the hair at the tip.