What is Dizziness?
Some people describe a balance problem by saying they feel dizzy, lightheaded, unsteady, or giddy. This feeling of imbalance or disequilibrium, without sensation of turning or spinning, is sometimes due to an inner ear problem.
What is Vertigo?
A few people describe their balance problem by using the word vertigo, which comes from the Latin verb "to turn." They often say that they or their surroundings are turning or spinning. Vertigo is frequently due to an inner ear problem.
What is Motion Sickness and Sea Sickness?
Some people experience nausea and even vomiting when riding in an airplane, automobile, or amusement park ride. This is called motion sickness. Many people experience motion sickness when riding on a boat or ship. This is called seasickness even though it is the same disorder.
Motion sickness or seasickness is usually just a minor annoyance and does not signify any serious medical illness, but some travelers are incapacitated by it, and a few even suffer symptoms for a few days after the trip.