I would like to ask cholecystitis and gastroenteritis, gastrointestinal ulcer symptoms what the diff

Cholecystitis patients will appear right upper abdominal pain or colic, nausea, sour, abdominal distension and other symptoms; gastroenteritis patients may appear fatigue, decreased appetite, watery stool and other symptoms; gastrointestinal ulcer patients will appear upper abdominal burning pain, hematemesis, hematochezia and other symptoms