hehe - I had the same problem as you on an introductory flight, motion sickness all the way... I was very annoyed because I don't get motion sickness in cars or in airplanes (commercial jets)....
After discussing the issue with a friend (private pilot), I think I figured out why I felt this way. I was concentrating too hard on the instruments rather than looking outside and taking note of the horizon. In other words, my body and ears felt motion but this was not correlating to what my eyes were seeing.
My friend suggested that next time I make sure to keep looking at the horizon and take a good look at the land below, track some ground objects but don't 'fixate'.
Yesterday I had my 2nd lesson and followed the advice, looking at the horizon, looking at the ground.... didn't feel airsick at all, it was a brilliant feeling as I thought it would take 8+ lessons to conquer the motion sickness.
Ps. I had chocolate just before the flight!
