it almost sounds to me as if you are developing or have developed some symptoms consistent with motion sickness. it also could be that as a passenger since you were never required to put attention on two specific tasks that you could ship your attention at any time to other things and thereby stave off any onset of motion sickness. however, as a flight attendant you have to be doing certain things in a repetitive fashion at times which does not allow you to shift attention as frequently so that symptoms of motion sickness may develop. think of what happens to some people who drive in automobiles and get terribly sick if they are to be reading anything or even just riding as a passenger but as soon as they become the driver things settle down. maybe you need to be flying the plane! LOL. Try some over-the-counter preparations for motion sickness and see how they work on a couple of flights and let us know.