The signs and symptoms of lactose intolerance usually begin from 30 minutes to two hours after eating or drinking foods that contain lactose. Common signs and symptoms include:  Diarrhea Nausea, and sometimes, vomiting Stomach cramps Bloating Gas 
signs symptoms lactose intolerance begin 30 minutes hours eating drinking foods contain lactose  common signs symptoms include:  diarrhea nausea  sometimes  vomiting stomach cramps bloating gas 
lactose intolerance