my pitt bull is the sweetest dog in the world & has never been a problem in any way, not his health or behavior. but lately everytime he drinks water he vomits up whatever he ate that day. i think the problem is that its been hot & hes drinking the water too fast, but i dont know. this has been going on for a couple months now, and im worried that he will get dehydrated. he has been vomiting 2-3 times a day. im worried & i hope there isnt anything seriously wrong with him because i dont have the money to take him to a vet & it would break my heart if i couldnt help him. do y'all know anything?