I think I have suffered from this, too. The first time was 15 years ago after being on a train for several hours. It lasted for about a week. The next time was 5 years ago and lasted for a month. That time, I could barely walk a straight line. I travel 2-3 times a year on a plane, and every time, I have this during my trip and then for awhile after I get home, sometimes a month, sometimes for a couple of weeks. Once, it turned out I had an inner ear infection, so I was relieved to have an answer for that. But, that also made me think that I was developing an ear infection every time I flew. While watching the show, I couldn't believe that they said they had relief only while in the car, because that was exactly what I had said to my husband! I didn't know what was causing it, so I tried to drink tons of water and take an allergy pill before flying. After watching the show, I'm scared to fly at all for fear of it never going away. As it happens, I have to go somewhere next week. I'm going to check out the yahoo boards as someone suggested...