female 37 5'8 140 pounds. I have had ongoing gas and bloating, uncontrollable belching for 4 years. I have done an endoscopy and I am fine. My dad died 5 years ago of colon cancer. I think it would be a good idea to go for a colonoscopy. Over the last 4 days I have had liquied diareha for 3days, bloating, uncontrollable burping and belching, loss of appetite..what should I do?