is it coeliac disease
In people with coeliac disease (pronounced âseel-ee-akâ and spelt celiac in some countries) the immune system reacts abnormally to gluten (a protein found in wheat, rye, barley and oats), causing small bowel damage. first degree relative (parent, sibling, child) of someone with coeliac disease has about a 10% chance of also having the disease. If one identical twin has coeliac disease there is an approximate 70% chance that the other twin will also have coeliac disease (but may not necessarily be diagnosed at the same time).