(The Best Years in Life) Hiatal hernias are functional defects occurring in the area where the stomach and esophagus come together at the hiatal opening in the diaphragm, causing a portion of the stomach to protrude into the chest. The sliding hernia is the most common, often causing acid reflux or GERD. Burning sensations and a feeling of fullness in the stomach and chest are sometimes mistaken for a heart attack. Hiatal hernias are more common in women than in men, and the condition is seen more often in people as they age, as a result of muscle weakness and obesity. Reducing hiatal hernias using acupressure is an effective means of controlling discomfort. Read More.