Lactose intolerance
Diarrhea is another common symptom of lactose intolerance. The unabsorbed lactose draws water into the colon, leading to loose, watery stools. While diarrhea is a common symptom of lactose intolerance, some individuals may experience constipation instead. This occurs when the undigested lactose slows down the movement of stool through the digestive tract. Nausea and vomiting may occur in individuals who are lactose intolerant. When lactose remains undigested, it can cause irritation to the lining of the stomach, leading to various symptoms of lactose intolerance. Abdominal pain and cramps are also the symptoms of lactose intolerance. These may range from mild discomfort to severe pain. In some cases, lactose intolerance can lead to headaches. The reason for this is not clear, but it may be due to the inflammation caused by undigested lactose in the gut. Fatigue is another symptom that may occur in individuals with lactose intolerance. This is due to the inflammation caused by undigested lactose, which can lead to a general feeling of tiredness. In rare cases, lactose intolerance may cause skin problems such as eczema and acne. This is thought to be due to the inflammation caused by undigested lactose in the body. Anemia is a medical condition characterized by an insufficient number of red blood cells in the body. In some cases, lactose intolerance may lead to anemia due to the malabsorption of nutrients caused by undigested lactose. Weight loss is a rare symptom of lactose intolerance. This occurs when the individual avoids dairy products altogether, leading to a decrease in calorie intake.