Different people are affected by acid reflux in different ways. The most commonly reported symptoms include: • Coughing • Chest pain • Burping or belching • Bloating • Difficulty swallowing • Vomiting and regurgitation • Sore throat • Heartburn • Nausea • Sour taste of acid in the mouth • Bad breath • Excess amounts of saliva • Difficulty sleeping after eating Many people experience mild symptoms of acid reflux on an occasional basis. In other cases, acid reflux occurs more regularly, and the symptoms can be quite severe. If you experience chronic acid reflux, it could be due to gastroesophageal reflux disease, also known as GERD. GERD is a chronic condition that affects around 20% of the national population and features acid reflux as a primary symptom.