Hi everyone, a while since I posted on here.Last year a few of you may remember I had huge trauma when my cat Dillon completely ruptured his cruciate ligaments & needed 3 lots of surgery. Well, good news is, that just before Christmas he was given the go-ahead to go outside again (he was so stressed indoors after being an in/out cat for 9 years he was spraying everywhere - yuck!) He is now on a diet to ease the weight on his knee, and getting about with a distinct limp, but well enough. (We live in a cul-de-sac so no busy traffic too near)Anyway, you may also remember I was trying to "befriend" a semi-feral which was hanging around. I managed to catch this cat & get him to vets - full tom, so neutered & advised by CP to release him A couple of months later (and cat still hanging around) he badly hurt his front let - caught him again, off to vets & again CP advised to release him. To cut a long story short after months of winning his confidence this cat has now adopted us and made himself at home. He has become a total cuddle monster, so I think he did have a home once. Quite nervous of loud noises or quick movements though. My daughters have called him Tom Tom after the sat nav because of how he always ends up back here! Black cat number 3! Rapidly turning into a witch.For the last couple of months Dillons fur seems to be thinning, and he is getting quite bald between his back legs. Vet has said it could be flea allergy (although all 3 cats regularly Frontlined), and wants to leave it a few months before doing more tests. I am wondering if it could be a stress thing with Tom Tom moving in. The cats will never be best buddies, but seem quite happy eating next to each other or sitting on adjacent laps. Stress, or could this be a hormonal problem, or would the balding be all over then? It's in a very symetrical pattern too.Any ideas?