i dont think so .all over body activity is related based on energy we gain from food.but due to some digestive problem there is a chance our body cant absorb the right nutrition.how can we say its an imagination and not related.then why our lip peel like shit.....gluten sensitivity is a solid reason for ec..... avoiding certain food make ec worse for some of us...reason may be he is not gluten sensitive .he only losing some more useful nutrition..