Approximately 6 out of 10 adults in the United States suffer from gastroesophageal reflux disease, also known as GERD, and 3 in 10 experience symptoms on a weekly basis. The most common symptoms are a burning sensation in the chest or throat and a sour taste in the mouth, but others exist: difficulty swallowing, sore throat, hoarseness, dry cough, regurgitation, the sensation of a lump in the throat, and even chest pain.