Stomach burning - Severe diarrhoea - Gas - Nausea and motion sickness (travel sickness) Stomach acidity may irritated your digestive mucous and starts a stomach burning. Anti-acid drugs protect your stomach wall in cutting down quickly the gastric acid secretion A diarrhoea is the condition of having frequent loose or liquid bowel movements. Diarrhea commonly results from gastroenteritis caused by viral infections, parasites or bacterial toxins. To cure a gastroenteritis there is just one solution : Take an anti-diarrhoea. A flatulence (or bloating). Digestive enzyme supplements may significantly reduce the amount of flatulence A high calorie lunch or an alcohol excess may slow the digestion processus and makes you sick. An anti-nausea drug could stop these annoyances. These drugs can also prevent the motion sickness.