Gastroesophageal reflux happens when the LES is weak or relaxes when it shouldn’t. This lets the stomach's contents flow up into the esophagus. The most common symptom of GERD is heartburn (acid indigestion). It usually feels like a burning chest pain that starts behind your breastbone and moves upward to your neck and throat. Many people say it feels like food is coming back into the mouth, leaving an acid or bitter taste. The burning, pressure, or pain of heartburn can last as long as 2 hours. It’s often worse after eating.

Gastroesophageal reflux disease (GERD) occurs when stomach acid frequently flows back into the tube connecting your mouth and stomach (esophagus). This backwash (acid reflux) can irritate the lining of your esophagus. In most people, GERD doesn’t cause serious complications. But in rare cases, it can lead to serious or even life-threatening health problems

Gastroesophageal Reflux Disease (GERD), commonly referred to as heartburn, is a condition resulting from stomach acid moving backward from the stomach into the esophagus (the tube that connects the mouth to the stomach). The acid causes burning, inflammation and pain on the lining of the esophagus and can eventually lead to permanent damage of the lining. Tightness in the chest may also be felt, and sometimes heartburn can be confused with symptoms of a heart attack. This backward flow of acid is also called reflux when symptoms are brief and intermittent and do not cause on-going symptoms. Many people experience acid reflux from time to time. GERD is mild acid reflux that occurs at least twice a week, or moderate to severe acid reflux that occurs at least once a week. Most people can manage the discomfort of GERD with lifestyle changes and over-the-counter medications.