3. Gas
If you tend to find yourself having a lot of gas, that means there must be a problem with your digestive system. This may indicate celiac disease that has not been treated yet. One study found that the most common symptom of gluten consumption, in relation to celiac disease, was gas. 96 adults with celiac disease in Northern India found they had excess gas and bloating at around 9.4% of the cases. Keep in mind that there are many other reasons for having excess gas, besides just celiac disease. Other symptoms that could cause gas are swallowing air, lactose intolerance, indigestion, irritable bowel syndrome, and even constipation.
Since the problem lays in the digestive tract, the microvilli, or the small fingerlike hairs in your gut microbiota, are completely destroyed and as a result, your food is unable to digest properly. This results not only in excess gas but bad smelling flatulence as well.