For all questions/discussion on other breeds.
My cats are dramatically affected by food, in psychology and in energy as well as in skin disorders, constant barfing, etc. I once took a cat to the vet and he told me that her liver etc. was sluggish and he could give her some medication. I said, would that cure her? No, he says, but it will deal with some of the symptoms... for awhile. Might cause others. I ask, so what causes sluggish liver? He says, all the organs get sluggish when the health is poor. I say, what makes the health poor? He says, generally the food and I advised to buy food like this https://catspurfection.com/chicken-free-cat-foods/. I said you know... you could have started the conversation on that point.