Lactose Intolerance Symptoms
Some of the signs and symptoms that you may experience from lactose intolerance include:
- Intestinal gas
- Bloated stomach
- Nausea and vomiting [2]
- Stomach gurgling and rumbling
- Stomach pain and cramping
- Diarrhea [3]
These symptoms stem from undigested lactose in your large intestine. It takes between 6 to 10 hours for food to reach your large intestine after you eat it, and another 24-36 hours after that to travel through your large intestine. So you might only start experiencing symptoms after a day or two after you eat lactose.