Pooker is a 17 year old male domestic short hair cat who is diabetic and needs insulin shots 2x/day. He also takes Benazepril 5mg once in the AM. He is also arthritic. When I feed him treats, groom him, pet him, ...basically when I do anything that would make him happy or excited he makes this weird throaty 2 second growl. It's very bizarre and hard to describe. Also, when I put my ear to his body to hear him breathe, I hear a wheezing kinda noise as if it is labored. I want to know why he makes that weird growl noise though. It's close to sounding like a belch. I don't know. Does anyone know what that is?