gastrointestinal disorders
Overview of Gastrointestinal Symptoms
Introduction
Upper gastrointestinal (GI) complaintsinclude Chest Pain None Chronic Abdominal Pain and Recurrent Abdominal Pain None Dyspepsia None Dysphagia None Lump in Throat None Halitosis None Hiccups None Nausea and Vomiting None Rumination None Some upper GI complaints represent Disorders of Gut-Brain Interaction (ie, no physiologic cause found after extensive evaluation). Lower GI complaintsinclude Constipation None Diarrhea None Gas-Related Complaints None Acute Abdominal Pain None Proctitis None As with upper GI complaints, lower GI complaints result from physiologic illness or represent a functional disorder (ie, no radiologic, biochemical, or pathologic abnormalities are found even after extensive evaluation). The reasons for functional symptoms are not clear. Evidence suggests that patients with functional symptoms may have disturbances of motility, nociception, or both; ie, they perceive as uncomfortable certain sensations (eg, luminal distention, peristalsis) that other people do not find distressing. 