Your dog will start to vomit more often, and as the acid starts to build up, ulcers
will form in
the gastrointestinal tract and in
his mouth. Of Course, they won't eat, because they are feeling sick, other symptoms may also appear...depression, incoordination, seizures,sleeping more often,confusion, rapid weight lose, shivering or trembling.
I have read that this disease is not painful....That is what I have read many times...