Acid reflux, also known as gastroesophageal reflux (GER) or heartburn is the backward flow of stomach acid into the tube that connects your throat to your stomach (esophagus). During an episode of acid reflux, you might feel a burning sensation in your chest (heartburn). This can occur after eating a big meal or drinking coffee or alcohol.
According to traditional Chinese medicine (TCM), heartburn is usually caused by emotional upset and eating the wrong foods. Reflux is seen as rebellious qi that is rising where it should be sinking.