I HAVE A 9 WEEK BULLDOG. HE STARTED TODAY HAVING LOOSE STOOLS, DROOLING DURING SLEEP (LEAVING A WET FACE AND PUDDLE UNDER HIM). I FIRST NOTICED WHEN HE GOT HOT AND DRANK A LOT OF WATER AND VOMITED TODAY AFTER WALKING OUTSIDE. HE HAS NOT VOMITED SINCE BUT STILL HAS LOOSE STOOLS AND A WET FACE. HE HAS HAD 2 SETS OF PUPPY SHOTS SO FAR, HAS BEEN TREATED WITH PANACURE FOR HOOK WORMS AND HAS HAD EAR MITE TX. WHAT COULD THIS BE?