Why come everytime i eat i get nausea?

Doctor can evaluate: A doctor can evaluate if such nausea symptoms last more than a couple of days. Nausea after eating can be due to many things, such as: stomach virus infection, other viral infection (such as flu), some bacterial infections (such as strep throat), gastric reflux (heartburn), gastritis (may be h. Pylori), gall bladder disease, certain cancers, pregnancy, some kidney diseases, medications, etc...