Celiac disease is not common among children, but it may have been underdiagnosed until recent years. Knowing risk factors for it may help parents.

When the stomach's yearning for food, heads can start aching as well. And it can happen more often among people with stomach problems.

Wheat sensitivity may show up as nausea or in bowel problems. A recent study found that some people with wheat sensitivity had symptoms more like celiac disease, while others had symptoms more like a food allergy.