Symptoms of Zollinger-Ellison syndrome may include:  Stomach pain. Diarrhea. Burning, aching or discomfort in your upper abdomen. Acid reflux and heartburn. Burping. Nausea and vomiting. Bleeding in your digestive tract. Losing weight without trying. Loss of appetite. 
symptoms zollinger-ellison syndrome may include:  stomach pain  diarrhea  burning  aching discomfort upper abdomen  acid reflux heartburn  burping  nausea vomiting  bleeding digestive tract  losing weight trying  loss appetite
zollinger ellison syndrome