All of us, at one time or another, have probably had some form of motion sickness. Maybe it was seasickness from a boat ride or cruise ship, or airsickness on a plane. Maybe it was getting "carsick", or an upset stomach (or worse!) after an amusement park ride.
Whether it came from a boat ride, airplane, amusement park ride, a car, train, or flight simulator, the symptoms are the same and the cause is the same.
