motion sickness 
noun [mass noun]
Nausea caused by motion, especially by travelling in a vehicle.Travel sickness, or motion sickness, is an unpleasant, temporary disturbance of your sense of balance and equilibrium that occurs while travelling by sea, road or air....
- Some of the antihistamines are also used to prevent motion sickness, nausea, vomiting, and dizziness.
- For some reason, migraines, hangovers, motion sickness, and acute mountain sickness have very similar symptoms.
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