lactose symptoms
Stomach Bloating Common symptoms of lactose intolerance include: 1  Watery, bulky, odd-smelling stools. 2  Nausea. 3  Abdominal pain. 4  Cramps. 5  Bloating. 6  Flatulence that begins about 30 minutes to 2 hours after eating or drinking foods or drinks containing lactose. Lactose intolerance Lactose intolerance. Lactose intolerance is a condition in which people have symptoms due to the decreased ability to digest lactose, a sugar found in milk products. Those affected vary in the amount of lactose they can tolerate before symptoms develop. Symptoms may include abdominal pain, bloating, diarrhea, gas, and nausea. These symptoms typically start between half and two hours after drinking milk or eating milk products. Severity depends on the amount a person eats or drinks. It does not cause damage to the ga