Kathy, I only just found this thread about your Winston tonight!!! What with Papi's YorkieTrain, I have read little else. I am so glad he is doing better. My senior girl Spanky had seizures when she was much younger; the reason was always undiagnosed. Each time she was treated with Phenobarb'. As she grew older, their frequency reduced A LOT and she has not had one in several years now. I hope and pray that the same happens with your precious Winston, that they just stop.
Hugs to you and Winston when you're both feeling bad.
Lauren