Belching is often one of the symptoms in symptomatic hiatal hernia,
Other symptoms are hiccups, difficult swallowing, coughing, chest pain or pressure.
When it is associated with acid reflux or GERD, it causes heartburn and the above mentioned symptoms.
When the stomach gets trapped above the diaphragm through the hiatus, it leads to upper abdominal pain.
Being overweighted is one risk for having this condition.
Hiatal hernia that produces symptoms, often needs to be treated surgically.