Had a similar experience with a German Shorthair with a different outcome. Vet found no definitive cause for the seizure. Six months later another seizure resulting in paralysis in back legs. New vet said he had a disease where the blood was clotting in body and to get a blood transfusion at University of Minnesota. The reason he knew what it was because he just successfully treated his Mom's dog for the same thing. U of M vets would not do a transfusion, ignored my instructions but presented me with a $1000 bill for tests confirming the other vet's diagnosis. They did tell me to get a trolly for him. Had to put the dog down. About a year later went to my old vets clinic who sold his practice to the vet from U of M. She specializes in fish and reptiles.
