Hi Lizzy.. Abdominal pain may not always be a symptom of cancer. There may be varied reasons for abdominal pain. It may be due to appendicitis,peptic ulcer,gastritis,cholecystitis or gall bladder inflamation,or cholelithiasis i.e.gall bladder stones,kidney stones,flatulence. and many more.. But if you are having consistent pain since many days without any relief,then you should consult a physician. He may suggest an ultrasound and other relevant tests,which will help to diagnose the underlying problem.