@ Patty R
It sounds like the veterinary er treated the dog’s condition as an acute emergency
It is very important that you follow up with your regular vet and/ or a specialist (neurologist) asap.
Please read some of prior posts.
An accurate diagnosis and the correct treatment is crucial. You won’t find that on the internet.
Often it may just be getting started the right medication, if it’s a seizure disorder. This shouldn’t be too expensive and will stop the suffering you are seeing.
She is at the age when idiopathic epilepsy shows up. It is treatable and will not effect her longevity
But untreated seizures will cause more damage. Her condition may not be diet related, other than possible
environmental and dietary triggers.
