I'm having really bad pains in the upper left side of my stomach. what does this mean?

Not Medical Advice: Upper left abdominal pain may be caused by a heartburn, gastritis, pancreatitis, stomach ulcer or bowel tumor. Ask your doctor for advice!
Updated on Thursday, February 02 2012 at 09:34AM EST
Collections: pancreatitisgastritispeptic ulcerupperheartburn