Lactose intolerance, an inability to digest the sugar in milk and dairy products, causes diarrhea, bloating, and abdominal discomfort after eating dairy products.
Lactose intolerance causes abdominal discomfort, pain, and bloating. If you try a lactose free product and your condition improves, you might reasonably assume that you are lactose intolerant.
The symptoms of lactose intolerance usually include bloating, diarrhea,gas and stomach cramps. These symptoms usually occur from 30 minutes to 2 hours after eating dairy products.