I'm glad to hear your Max is feeling a little better. They do heat up pretty easily. It's hot hot hot where I am and my little Max is doing a lot more sleeping than usual too; he has no lethargy though when it comes to eating time though, LOL! If I don't start getting up earlier, with this heat and his being in "relax" mode, he's going to be 8 lbs too....only he'd be totally ROUND if he gained that much b/c he's not big enough to gain that much. A lot of times you can tell that they're not themselves just by how their eyes look....when they're feeling normal, their eyes are all shiny, or kind of sparkly...when they're sick, they get ....duller, I guess....just different. Keep us posted. I hate it when our little furkids don't feel good! He's really a cutie pie, BTW