When I first started I used to get sick... Never blew chunks or anything but close. I got used to it very quickly. You could buy wrist bands for motion sickness if it is really that bad. The window thing really helps because it was so damn hot in the plane and at 3000 feet that wind feels mighty fine. Just hang in there, your instructor should understand.. My instrument instructor used to try and make us sick. Unusual attitudes with goggles on is not so fun the first few times...