Celiac disease is an autoimmune condition that causes an inflamed small intestine after eating gluten containing foods. Symptoms include bloating or gas, constipation, diarrhea, fatigue/tiredness, irritability, itchy skin rash, joint pain and poor weight gain. Those affected by celiac disease must avoid foods that contain wheat, rye and barley. Gluten and histamines may be migraine triggers for some people.
A study of 118 people with celiac disease found that those with celiac disease had a higher rate of chronic headaches compared to controls.1