My dog has started having seizures about once a month. What is considered a "severe" seizure? He paddles and drools profusely, also pees. Lasts about 3 minutes, then he's very confused and wobbly for awhile. Vet care is SO expensive, and I've read they won't medicate him unless seizures are severe. And we really don't want him on meds unless absolutely necessary. Is there a certain type of food that would help?