Hi everyone, i need some advice. My 8 year old deaf cat has a bold spot on his left back leg and on the exposed skin has brown spots (see image). It doesn't seem to be fleas (or at least I haven't found any) and i haven't seen him licking or over-grooming that area. He allows me to touch it and he doesn't seem to be in any pain. I worry that it might be the dry food i switched to 6 months ago - Feringa cold pressed chicken. I suspect this because his farts have been very pungent last weeks (smelling like rotten eggs), which may or may not be related. Other than that there haven't been any other changes to his diet or in our household. I know the best course of action would be to go to the vet, but he is having some stress issues lately (gets scared over little things such as me turning off the lights), and I don't want to further stress him with a vet visit (which is always stressful for him). Any ideas? Food allergies? Could it be stress related? Any clue would be much appreciated. Cheers!