Heartburn

Chances are you've experienced that sudden, scary chest pain that can buckle you over when stomach acid backs up into the esophagus, burning its delicate lining. What's the cause? Are you suffering from acid reflux, gastroesophageal reflux disease (GERD) or a simple case of heartburn? Sometimes it's tough to tell the difference. Here's what you need to know.

Acid reflux and gastroesophageal reflux disease (GERD) are two conditions that begin with heartburn. Additional signs of acid reflux include chest pain, especially when lying down, burning in the back of your throat, hoarseness or sore throat, an acid taste in your mouth, dry cough and frequent belching. GERD is the more serious condition, with symptoms that can affect your quality of life.