Oh yeah I had the same thing! On my first flight last week I was sitting in my seat and feeling really rough. I got really hot flushes and just wanted to be sick. I has worn off and it's something you will get used to. Now I can walk about the cabin when the plane is banking and everything and I don't even notice half the time. Before I would go all dizzy and want to sit down! Just drink plenty of water and just ride it out and let it takes its course. You'll soon get used to it!!!