Hi, I have been suffering from chronic heartburn for almost 2 years. Initially my doctor ordered crp test and fobt stool test and said i may have gerd / sibo and put me on ppi and antibiotics. After a month i consulted a gastro doctor and he ran 5 to 6 blood test from blood count to crp and all came normal. He said I have functional disorder. Its been more than an year , iam managing my symptoms with antacids every now and then and no cure for my constant loose stool ( not diarrhea though 1 time a day). Do I need to take endoscopy and check this further or I can continue with digestive enzymes and antacid on need basis please? Thanks.