Lately I've been belching a lot. No heartburn or stomach pain but a bit of a nauseous feeling in my throat. I take 100 mg of tramadol regularly as prescribed by my doc each day for back pain and have been on it for about 6 months with no issue. Could this be my body telling me it wants more? It does go away when I take the medication but that could just be the medication doing it's job. I don't want to increase the dosage as 100 mg works great. I have had some gallbladder problems in the past but no pain in a few years. Any ideas before I go to the doc?