I had severe allergies and had no signs of celiac disease but my blood test showed otherwise. When I got off of gluten my allergies disappeared. I was called a silent celiac. I feel for your husband. If I eat gluten I bloat and cramp now but never did before getting off. Dr explained we have built up a tolerance and it was causing vague symptoms and not everyone has same symptoms. Glad you questioned the sores. My allergist never believed I took my allergy pills and treated me badly. I got rid of her after about 4 years of her ignoring me.