Celiac disease, gluten sensitivity, cow's milk protein sensitivity and other food intolerance may be associated with numerous digestive and non-digestive symptoms. Some of the most common non-digestive symptoms include fatigue or sense of being overly tired, headaches, bone, joint and/or muscle pain, mental fogginess or impaired attention, nerve pain (neuropathy), and painful or severely itchy skin rashes. The most common digestive symptoms include feeling of excess fullness with meals or afterwards, bloating or distended abdomen, diarrhea, excess or foul gas, constipation, heartburn, nausea, vomiting and abdominal pain.
Rating the severity and frequency of common symptoms, in particularly creating and tracking your own individual "Top Ten Symptoms" will be very helpful to you and your doctor, especially when combined with a detailed food-symptom diary. In addition to medical tests like blood work, stool samples, and endoscopic exams, assessing symptoms for severity and frequency before, during and after an elimination diet trial is critical. This helps determine if certain foods are causing or aggravating your symptoms.
The foundation of treating food intolerance usually includes an elimination diet. Prior to an elimination diet, a food diary is usually kept and reviewed for trends by a doctor. In the context of your medical history, symptoms, family history and medical evaluation a medical evaluation is usually recommended that may include blood and stool tests, skin testing for food allergens, and scope examinations of the upper and/or lower digestive tract. Your medical evaluation however could vary widely based your doctor's experience, specialty, biases about food allergies or intolerance and your history, symptoms and age.