catmandu - I had them both on Nutro MaxCat Adult Lite when the puking started, and now they're on Science Diet Adult Sensitive Stomach, because of the puking. I really think Tito liked the Nutro better!

ccl - I think you're right on that...I won't switch them again, I'll just let them get used to this food.

Christa - it could definitely be my little piggy Tito man is overeating. It's entirely possible he's just gorging himself. What a little fatty!

cosmicat - Sophie was on dry kitten food (Science Diet Kitten), and now she's on dry adult food (was the Nutro, now they're on the Science Diet Adult Sensitive Stomach).

emily the spoiled - Thanks! I started doing that last night. I took up one of their food bowls last night, and left a little bit in the other. Hopefully that works. Tito only bugged me once last night, and it was about 6:30 am, about the time I usually get up anyway.

Thanks everyone! I bought some Four Paws Hairball stuff last night, just in case it's that. Neither one of them have ever coughed up a hairball in their lifetimes, so I'm wondering if someone's got a big one going. I got this malt paste stuff you have to get the cat to lick off your finger, a tiny bit every day. Sophie loved it, but Tito hated it!! I had to chase him down and smear it on his nose so he'd lick it off. I don't know if it will help but it can't hurt. Thanks everyone for your help!!