Everyone produces stomach acid to help with digestion. If your stomach produces too much acid, heartburn symptoms can occur. This happens when stomach acid moves up into your esophagus, the tube that carries food from your mouth to your stomach. Occasional heartburn can be caused by diet and lifestyle choices. It's important to know that different people experience heartburn in different ways. You may have one or more of the symptoms listed below.
Painful burning in the chest, just behind the breastbone, typically 1 to 4 hours after eating
Sour or bitter taste in the mouth
A hoarse, sore throat
Coughing or choking while lying down
Sleep problems after eating
Heartburn can mimic a heart attack. If you have any doubt
about the source of your pain, get emergency treatment immediately.