Symptoms of Acid Reflux
Acid reflux is a fairly common condition that occurs when stomach acids and other stomach contents back up into the esophagus through the lower esophageal sphincter (LES). The LES is a muscular ring located in the digestive tract where the esophagus meets the stomach. The LES opens to allow food into the stomach when you swallow, and then closes to prevent stomach contents from rising up into the esophagus. When the LES is weak or damaged it may not close properly, allowing harmful stomach contents to back up into the esophagus, causing acid reflux symptoms.

Common symptoms of acid reflux are:
Heartburn: a burning pain or discomfort that may move from your stomach to your abdomen or chest, or even up into your throat
Dysphagia -- a narrowing of your esophagus, which creates the sensation of food being stuck in your throat
Regurgitation: a sour or bitter-tasting acid backing up into your throat or mouth
Weight loss for no known reason
Wheezing, dry cough, hoarseness, or chronic sore throat
Other symptoms of acid reflux disease include:
Bloating
Bloody or black stools or bloody vomiting
Burping
Hiccups that don't let up
Nausea