<prompt> Answer this question truthfullyWhat is the history and what are the symptoms of gastrointestinal stromal tumors?  <response>: <reason> The symptoms of GISTs depends upon the tumor size and location. Majority of the GISTs are asymptomatic. Patients with GIST who have symptoms tumor size 5cm are generally non specific. Following are the common symptoms seen in patients of GIST: Dysphagia esophageal GIST Gastrointestinal hemorrhage presenting with black stools or hematemesis Vague abdominal pain or discomfort Constipation colorectal GIST Jaundice duodenal GIST Abdominal fullness Nausea Anorexia Weight lossIntra- abdominal hemorrhage is uncommon, but when it occurs, can lead to symptoms such as: Malaise Fatigue Dyspnea 