Welcome to the board, Alicia.
Since this is an infrequent thing, if you can get video of an episode for the vet it would be very helpful. It could still be a small seizure, even though Wylie is not unconscious or even unaware when it happens.
Have you noticed any pattern in the episodes? Anything that might have triggered it? How many times a day does Wylie eat, and did it happen long after his last meal?
Hard to tell what to ask the vet until you get some idea of what might be happening, but for sure ask what to do if there's a next time (for instance, he may want to see him right away since if it's something due to, say, low blood sugar, a quick blood test may show it if you get him there fast enough).
I hope the vet has some ideas about what's going on with Wylie--at least enough to set your mind at ease. Pls let us know what he says!