Poor Brodie (and you!). Christa, has his thyroid levels been checked? Kuhio started puking and puking (no hairballs) when her thyroid went into hyperdrive. She never ate quickly or anything like that. But her system was on such overload that she puked several times a day. She didn't start this until she was about 15. Brodie is much too young for this, but it could be something to check out.