I used to feed my boys both wet and dry, and they both seemed to tolerate it fine. Due to my work schedule, I had switched to just dry. Now when I try give my younger cat (who is about 4-5 years old) canned food, he vomits. I've tried very small amounts of a few different canned foods, and every time he vomits repeatedly within a minute or two of consuming the food. Any idea what could cause this? I'd love to feed more canned, at least on occasion, since my other cat is a senior.