I am sorry to hear about your symptoms, and it sounds like they are having a significant impact on your life. In order to provide an accurate diagnosis and treatment options, a doctor
would need to review your entire medical history and perform a thorough physical exam. The doctor would also need to be able to review the full details of your prior testing. only after collecting this information will it be possible to make a recommendation. Therefore, I strongly encourage you to schedule an appointment with a gastroenterologist
to discuss these symptoms.
It is important to know whether this pain existed prior to your appendectomy or if your appendix was removed as a result of the pain. Appendicitis
is unlikely as you no longer have an appendix. You can certainly have irritation of nerves following the surgery that could be causing pain. Abnormalities of the blood vessels feeding your intestines can cause pain, and this is often associated with eating. Pancreatitis, or inflammation of the pancreas, can lead to abdominal pain that radiates to the back. Atypical abdominal pain can occasionally be due to coronary artery disease. Finally, you could be suffering from functional abdominal pain. I encourage you to discuss these possibilities with a gastroenterologist.