I'm not sure whether I should be worried or not, but Capone throws up the smallest amount of (wet) food. Pretty much every serving this week (from half a pouch, to 1/3 of a pouch) has come back up again. When we first got him I used to give him 1 pouch in morning, and 1 pouch in evening and as far as I remember it stayed down. He definitely has thrown up way more in the past week. He also drinks quite a lot. His poo/wee in the tray seems normal though, and he is his usual self apart from that. Happy, playful and affectionate - he doesn't seem ill in any way.
Is there reason to worry anyway?!