Motion sickness isn't caused by the shaking and vibration, at least not directly. The problem arises because your inner ear and eyeballs are sending contradicto

Motion sickness isn't caused by the shaking and vibration, at least not directly. The problem arises because your inner ear and eyeballs are sending contradictory signals to your brain. The solution: sit near a window where you have an outside steady visual reference to the shaking. I got very carsick once while reading a book in the back seat. I was advised to put the book down and look outside, and the problem subsided. Try it, you may find it helpful. Have a great vacation!