Nausea is a very vague and relative term. Different people perceive nausea as different feelings. Some sense an "overactive" stomach where contents are pushing up. This is where a lot of the medications and remedies are helpful such as saltines, ginger, etc.For me, nausea is an "underactive" stomach where the contents feel too large for the stomach to hold, and it all just overflows from the bottom of my stomach to my throat. It's as if the stomach muscles won't move at all, and all solids and liquids, including water, just sit and pile up for about 12 hours. In my case, any liquid makes it 10 times worse.In either case, I think it helps to try to get my mind off of it and get involved in something that has nothing to do with food or stomach problems. Walking for 15-30 minutes can do wonders for my nausea at times.There may be other ways people feel when they claim to have "nausea." It can include a number of different feelings for different people.