Most people who have celiac do not know it. It requires a special blood test. It is an auto immune disease and causes depression, fatigue, and stomach pains. Your body literally attacks the villi in your intestines which absorb nutrients. Not sure this is what Aaron had celiac, but he does have the symptons. This is why so many people are eating gluten free, not to lose weight. One out of 100 have celiac, and the numbers are growing.