Kind of worried about my cat. We've had some brutal heat lately and I notice him barely eating or drinking, and being more lethargic. Asking around it seems normal for cats to not eat as much in summer. He still plays with toys (with a little coercion) and he's an older guy at 12 years. Just hope the heat is all it is. Vet trip might be necessary if he doesn't seem better in a day or so.