There are many conditions thought to be caused or exacerbated by consuming gluten containing foods. Below are some of the more common or prevalent ailments but there are many more. One of the thoughts is that gluten could impair the body's ability to process food, which, could affect just about any part of the body.
Bloating
Diarrhea / Constipation
Persistent Headaches
Chronic Fatigue / Tiredness
Dermatitis / Psoriasis / Eczema / Other skin conditions
Depression / Anxiety
Joint and Muscle Pain
Neuropathy
Brain For / Dizziness / Difficulty Concentrating
Worsening of Allergies