Learn what words mean before you use them.

Are you aware that, when you are feeling queasy, you say, "I'm nauseous," you may be saying more about a personality problem that anything about the state of your health?  The correct term to describe that stomach upset is: nauseated.  Nauseous means: causing nausea, revolting, sickening.  But, who am I to correct you.?  Maybe you do know the meaning of the word and are just confessing to the world.