Hi there,
Glad to hear that it isn't epilepsy, although, as mentioned, it is treatable. I had a small dog, Charmin, w/epilepsy and she was on a low dose of phenobarbitol for years, until she died at the ripe ol' age of 18 1/2, actually. Hers started after she gave birth, just a few days later.

Keep us posted on how he's doing.

Blessings,
M