It sounds like a seizure to me but I don't have any experience with this... Like micki76 said, she seems really young to have a stroke. I'd just let her rest till you get to the vets. Just make sure you keep an extra eye out for her just in case it happens again. And don't blame yourself. We all make mistakes...I forgot to feed Kai so many times....but it's only in our nature to make mistakes. And after all, we just learn from our mistakes. Prayers for you and scarlett.