[anonymous]

Go to rice/boiled chicken meat for now, bland diet

Glad you are going to a specialist, get to the root of the problem.
In the meantime if the symptoms continue and the dog is in distress, go to the emergency vet, yes it will be expensive but you will find out exactly what is wrong with your dog and what your treatment options are, within an hour or two.
It is up to you… You know there is something seriously wrong, that is why you came here.
Good luck