Relax. Stress can cause or exacerbate gastrointestinal ailments such as indigestion, irritable bowel syndrome, constipation and diarrhea. Relieve stress by reducing the commitments in your schedule, going on vacation, learning to meditate, exercising or taking up a hobby.
Exercise your body. Even a brief stroll, particularly after meals, may aid in digestion and help an overstuffed or crampy stomach feel better.
Check your calendar. Morning sickness is one possible cause of stomach upset in women who are capable of bearing children, so before you consider reaching for any medication or making any major changes in your diet to ease your stomach woes, you may want to make sure that pregnancy isn't the culprit.