Randi, I hope that everything will go well with Fister's vet visit. My Storm is now 12 years old too and sometimes he can be very picky with his food. Most cats do prefer their wet food at room temperature or the left overs warmed up but not my Storm. He prefers everything cold. I have to be sure to have plenty of cans of wet food in my refrigerator. Luckily the rest of my cats have gotten used to cold wet food so it hasn't been a problem. Both Storm and Sunny are going to the vets this Sunday for their annual exams so I also hope for the best. Good luck.