I used to have a visual blur before going backwards on a Schwartzkopf shuttle loop, but I think it had something to do with my contacts floating or something, even though nothing's really supposed to make them move around in there(?) that ride was the only thing that did anything "to them", because I rode Viper last week, I felt air, no visual blur like I used to get. Nothing has made me feel like blacking out, I've never even gotten sick, yet. People experience this on X-Flight? What about Stealth?
Do you guys drink things other than colas? If you drink nothing but soda, maybe you need to drink some waters, too.