text: <unk> , also called dyspepsia, is a type of<unk>  involving an excess of hydrochloric<unk>  in the stomach.  Frequent occurrence of<unk>  can lead to aggravation of the duodenum or to an aggravation of the lining of the stomach, both of which can lead to ulcers which can be life-threatening. However, it is important to note that some 85 to 95% of all stomach ulcers are caused by infection with the bacterium Helicobacter pylori, and not by excess<unk> ity.<unk>  should be distinguished from heartburn, which typically involves aggravation of the esophagus.
option_0: Acid indigestion
option_1: Mouth sores
option_2: Malabsorption
option_3: Odynophagia electrocardiogram
option_4: Reflux
option_5: Chronic colestites
option_6: Gastric dumping syndrome
option_7: Bloating