A hiatal hernia occurs when a portion of the stomach protrudes through the diaphragm and into the chest cavity. While many people with hiatal hernias do not experience any symptoms, some may experience pain or discomfort.

The pain from a hiatal hernia is typically located in the upper abdomen or chest area, and may be felt as a burning sensation or pressure. This is because the stomach acid can leak into the esophagus, causing irritation and inflammation. This can lead to a condition called gastroesophageal reflux disease (GERD), which is characterized by heartburn, regurgitation, and other symptoms.
Other symptoms of a hiatal hernia may include difficulty swallowing, chest pain that worsens when lying down or bending over, belching, and a feeling of fullness or bloating. In some cases, a hiatal hernia can also cause shortness of breath, wheezing, and a chronic cough.
The severity and frequency of symptoms can vary depending on the size of the hernia and how much of the stomach has protruded into the chest cavity. Some people may experience mild symptoms that can be managed with lifestyle changes, while others may require medication or surgery to relieve their symptoms.
If you are experiencing pain or discomfort in your upper abdomen or chest, it is important to talk to your healthcare provider. They can help determine if you have a hiatal hernia and develop a treatment plan to manage your symptoms.