causes of frequent belching or burping
Other Causes of Excessive Burping. 1  Duodenal ulcers. 2  Cholecystitis or gallbladder pain. 3  Depression or anxiety. 4  Stomach cancer. 5  Swallowing air while eating. 6  Dyspepsia can be side of effect of medicines such as aspirin, antibiotics, steroids, theophylline and digoxin.