Wow. That's really scary. Glad she came out of it... I have no idea what to tell you, other than it sounds pretty serious. I would definitely get her to a vet, and get it checked out. You may be right with thinking seizure though. I'm a med student, and if I saw a human present with such symptoms, that's the road that I would go down. No idea what may have caused it. Have you recently treated for mites by chance? Exposure to high levels of permethrin (common ingredient in pesticides) could cause such a reaction in a person. But again, I don't know if that would apply to a snake.

I think you should get her in as soon as you can. Really hope it's nothing serious. Poor girl.