Today, it is a real grievance.
I travelled by bus (the Greyhound type) to visit my friend. I knew myself to be sensitive to rolling and pitching but this time was simply ridiculous. I took four anti-nausea pills (two before the trip, two mid-trip and I barely made it to my destination without making a mess. A nine-hour bus ride is a long trip when you feel like throwing up.
Did you know passengers in a bus actually sit higher from ground level by a good 6 feet (1,85m) than truck drivers?
You feel the pitch every time the ground is not perfectly leveled, and you feel the roll every time you go through a hole or a bump.
I am usually fine when riding in a car (especially if I drive), I have no issues with trains or planes, but the bus? Infallibly!