7. Chest pain
In some cases, GERD can also be confused with a heart attack because pain is sometimes not located in the upper portion of the abdomen. You can experience referred pain in the chest, especially in more severe cases of the disease and after a large meal. In some cases, you might be able to detect it is due to acid reflux, but in general, it is always a good idea to report chest pain, especially if the symptom is severe.