One of the most impressionable experiences I had when learning to fly was when I was doing my IFR training and it was a shitty stormy Seattle day. The plane was getting bounced around pretty bad I got really sick and threw up. I told my instructor to take over. He said no, this might happen when I was alone and I needed to know I could do it. So I had to fly the plane home and land when I was horrible airsick. But I did it. It was nice to know I could.