Acid refluxbecomes gastroesophageal reflux disease (GERD) when it causes bothersome symptoms or injury to the esophagus. Some symptoms of GERD are: ●Heartburn ●Difficulty or pain with swallowing (feeling that food gets "stuck") ●Unexplained weight loss ●Chest pain ●Choking ●Bleeding (blood in the vomit, or dark-colored stools).