Heartburn, chest burning, sour taste in the mouth, burping, bloating, throat discomfort, or coughing are symptoms of gastroesophageal reflux disease, a disorder in which stomach acid frequently runs back into the food pipe. Spicy or oily foods, excessive eating, smoking, alcohol, obesity, stress, and lying down right after meals are common triggers. Lifestyle modifications include eating smaller meals, avoiding trigger foods, decreasing extra weight, and not lying down for two to three hours after eating are typical components of treatment. If symptoms are severe or frequent, doctors may also recommend acid-reducing medications.