Hi thank you for querry, As you mentioned your symptoms, Barret esophagus is a chronic disease in which normal lower eaophagus epithilium change, history and physical examinagion is important in such cases if required upper GI endoscopy help to rule out the cause. several possibilities which be diagnosed after proper workup. its bettet to consult a gastroentrologist to rule out underlying pathology. Hope the answer will help you. wish you a good health.