Left Sided Abdominal Pain?

If the pain is in the lower left side of the abdomen along with fever, and possible nausea, vomiting, chills, stomach cramps, and either diarrhea or constipation. Which could mean Diverticulitis or peritonitis, both of which you should see your doctor about ASAP. If there is no vomiting or fever, and you are a woman, the pain could be caused by an ectopic pregnancy.