How did your Vet diagnose the Pancreatitis? Bloodtest or just an evaluation? Yes, Ginger's correct.....If this is truly a Pancreas problem, he should have never been released from the hospital the first time.......
Dehydration will set in quickly and cause all kinds of other problems......They should have kept him for fluid therapy & treatment.....
Is he on anything for pain? This is also a extremely painful condition.....
I wish you luck......My gut feeling is that you shouldn't wait till tomorrow......Please, let us know what you find out....I'll be thinking about him & you....Karla
Thanks we are taking him back to the vet in the morning
With an acute pancreatitis attack it is not possible to eat anything, in fact it isn't advisable, and it's true, even water can be hard to keep down. It is better that NOTHING (not even water now) enters the system by mouth to give the pancreas a complete rest.
He needs to get to the vet as soon as possible. You were doing the right thing, giving him tiny amounts of water to try to hold dehydration at bay, but that won't help now.
It's my opinon he needs IV rehydration, possibly antibiotics, and hospitalization until this stabilizes.
Take him as quickly as you can. There is a risk he could go into shock.