Did you check the search engine? /forums/search/gulping/
As you can see, some ridiculous responses. Please have a talk with your vet, ask him to call you back when he has a minute. Don’t be foolish, food won’t fix this.
Your dog needs the expertise of a veterinary healthcare professional and real medication (not supplements)
I know how frustrating it is, I have the credit card bills to prove it. :-/
PS: Ask your vet if you can just treat the symptoms? Anticonvulsants? If your priority is care and comfort rather than diagnosis and treatment, tell your vet..
