Autoimmune conditions can also result in digestive difficulties, diarrhea, and belly aches. If these types of symptoms happen frequently, you may have celiac disease, for example. People with celiac disease can suffer a range of unpleasant symptoms when they consume gluten.
Other autoimmune conditions that cause such symptoms include Crohn's Disease. Another chronic inflammatory bowel disease that is more problematic is its late complication, which can be colon cancer. Ulcerative colitis, for example, is another inflammatory bowel disease where autoimmunity plays a role. So, if the patient has any gastric problems after a meal, the doctor may sometimes suggest checking for autoimmune diseases.