I have excellent balance compared to what I see in my exercise class. Howerver, I get motion sickness at the drop of hat. If I drive for more than an hour in stop and go traffic, I will turn green. I have been on many boats and ships and I still get it. However I can walk on a balance beam without any problem and do all the balance exercises while others are hanging on to walls or whatever to support themselves. I thought balance and motions sickness were a function of how well the inner ear canal functions. How can I have one without the other?