As we have talked about there are various kinds of “Dizziness”. Sometimes people confuse positional vertigo with motion sickness, because they both happen when in motion.
BPPV is characterized by spinning vertigo when changing into certain positions. These are typically rolling over in bed, looking up and to the side, or looking under something. Often it happens on a specific side, either left or right, although some unlucky people have BPPV on both sides. Many people who have BPPV are afraid to travel in case an attack comes on while away from their own physician. Devices for the treatment of BPPV are available to take with you when away from home.
Motion sickness is a sensation of “Disequilibrium” or being off balance, or feeling like you are moving when you are not. It is caused by a disjunction between what you see and what you feel, or between what you feel and what your ear is telling you. A good example of this is when the car beside you at a traffic light rolls backward and it makes you feel like you are rolling into the intersection (your eyes tell you that you are moving but your body and balance organ say you are still). Not only is this a bit anxiety provoking but it often causes an uncomfortable sickness feeling of disequilibrium. Another good example is the familiar sensation of reading in a moving car. Your eyes tell you that you are sitting still, since you are looking at a book, but your ear and body tell you that you are moving. It is this disjunction that is the culprit in motion sickness.
There is also an under-diagnosed but interesting phenomenon called “Mal de Debarquement” syndrome. Everyone has heard of sea-sickness (a type of motion sickness) but this happens when you get off the boat. Typically the individual has not had sea-sickness and is the envy of everyone else until they step back onto dry land. Then they still feel like they are on a boat. In some cases this is temporary but in others it is permanent. These people may be seen swaying down the streets as if on board a boat in rough seas. It is a difficult and very frustrating problem for which there is currently no cure.
In general, traveling with vertigo can be scary. Tips on traveling can be found at http://jetseventravel.com. In order to overcome vertigo and get back to living your life, learn as much as you can about your own condition and travel with adequate preparation. For example, if you get motion sick bring anti-nauseant medication (Gravol/Antivert/Dramamine), if you have Menieres disease, Serc can be useful, and if you have BPPV learn the treatment maneuver or take a self treatment device with you.