14. Abdominal Pain

If you’re experiencing constant stomach aches that medication doesn’t seem to help with, it might have been be caused by a stomach or pancreatic caner. Abdominal pain or discomfort is caused by swelling or the build-up of fluid in the stomach caused by cancer. Most of the time, the pain is exactly tear-inducing, you’d most probably feel a dull pain in the middle of your stomach. But what makes it risky is that doesn’t go away for a long period of time.