Abdominal pain is a symptom of a variety of ailments: a stomach virus, menstrual cramping, indigestion, dyspepsia or food intolerances. MedlinePlus reports that abdominal pain is typically not serious, and is often treatable with self-care methods.

Abdominal pain is a common complaint of pregnant women. They may be dismayed to find that the pain often continues at least for the first few days postpartum, sometimes even longer. In most cases, abdominal pain is a normal, transient response to childbirth.

More than half of all infants experience reflux during the first three months of life, according to the National Digestive Diseases Information Clearinghouse.

Swelling in your lips after eating is related to a food allergy. Swollen lips may be a sign of a severe allergic reaction and thus needs to be evaluated by your doctor. Lip swelling is a common reaction that occurs when you eat certain fruits and vegetables. Some food-related allergies may be connected with hay fever.

Humans are the only mammals that continue to drink milk after they finish breastfeeding as babies. However, around 60 percent of all people are estimated to develop lactose intolerance, which is the inability to digest dairy products, according to a Cornell University News Service.

Every year, about 1 in 6 people in the U.S. experience food poisoning, or foodborne illness, according to the Centers for Disease Control and Prevention. Foodborne illness occurs when you ingest a food or beverage contaminated with toxins or illness-causing pathogens such as bacteria, viruses or parasites.

A colonoscopy is a lower gastrointestinal test used to examine the lining of the colon and rectum for abnormalities such as colon polyps, inflammation, ulceration, bleeding and colon tumors.

Laxatives are over-the-counter medications used to help relieve and prevent constipation. These products work by creating soft or loose stools or by inducing a bowel movement.

Premenstrual syndrome is more of a grouping of symptoms that occurs in relation to a woman's menstrual cycle than an actual condition all on its own.

Stomach pain after eating yogurt is not normal and should be evaluated by your physician. The most common causes of stomach pain after eating yogurt is lactose intolerance, which causes cramping, and a milk allergy, which can cause inflammation in the digestive tract.

The most common site of pain associated with appendicitis is in the lower right side of the abdomen, between the navel and the right hip. Often, the pain starts out as an ache around the belly button and moves to the lower right side when the appendix is inflamed and its removal is necessary.

Dizziness, nausea and vomiting occur with many diseases and conditions affecting different organ systems. Mild to potentially life-threatening ailments of the gastrointestinal tract, nervous system and cardiovascular system commonly provoke these symptoms.