Not everyone with GERD has heartburn, but the primary symptoms of GERD are heartburn, regurgitation, and an acid taste in the mouth.
Heartburn usually is described as a burning pain in the middle of the chest. It may start high in the abdomen or may extend up the neck or back. Sometimes the pain may be sharp or pressure-like, rather than burning. Such pain can mimic heart pain (angina). Typically, heartburn related to GERD is seen more commonly after a meal. Other symptoms of GERD...
A few people have GERD that doesn't respond to treatment. Or they may have other concerning symptoms, such as weight loss, difficulty swallowing, anemia, or black stools. If you're one of them, you may need any of the following tests.
Diagnosing Acid Reflux With a Barium Swallow Radiograph
Your doctor may decide to use a special X-ray procedure -- the barium swallow radiograph -- to rule out any structural problems in your esophagus. In this painless acid reflux test, you will be asked to swallow a solution of barium. The barium enables doctors to take X-rays of your esophagus.
Barium swallow isn't a surefire method of diagnosing GERD. Only one out of every three people with GERD has esophageal changes that are visible on X-rays.