Motion sickness can spoil a trip or vacation.
The common symptoms are feelings of malaise, nausea, and vomiting. It can happen in cars, in airplanes, on rides in an amusement park, or at sea. Once you begin to feel ill, there's not a lot you can do for relief, apart from getting to solid ground. If you've lost visual contact with a stable horizon, you may feel ill. Fear and anxiety contribute to the malaise.