<unk>  is usually caused by swallowing air when eating or drinking and subsequently expelling it, in which case the expelled gas is mainly a mixture of nitrogen and oxygen. *Burps can be caused by drinking beverages containing carbon dioxide, such as beer and soft drinks, in which case the expelled gas is mainly carbon dioxide. *Diabetes drugs such as metformin and exenatide can cause<unk> , especially at higher doses. This often resolves in a few weeks.<unk>  combined with other symptoms such as dyspepsia, nausea and heartburn may be a sign of an ulcer or hiatal hernia, and should be reviewed by a physician. *Other causes of<unk>  include food allergy, gallbladder diseases, H. pylori, acid reflux disease and gastritis.
Burping
Bursting
Soiling
Proning
Douche
Retching
Nose-picking
Nitpicking