heartburn is a burning feeling in the chest caused by stomach acid travelling up towards the throat, text concept on card

abdomen ache acid acidity analgesic antacids background bloating bowel bowels burn burning card caused chest common concept definition digestion digestive disease duodenum enzyme esophageal esophagus feeling gas gastro hand heart heartburn indigestion inflammation ischemic obesity pregnancy pregnant quote reflux regurgitation sensation smoking stomach symptoms text throat travelling word