Most likely this isn't appendicitis. You would be in a lot of pain, it would occur suddenly, you'd have a fever, diarrhea and vomitting. I've had pain in that area before but nothing else ever shows up.

I had appendicitis a few years ago. Sucked. It started with a fever and the doctors thought I was just sick. Then I had stomach pain and they said it was only constipation. I went on with this for three weeks unable to even turn over on the couch, until one day it hurt the most of all! After waiting the weekend (my parents dont take action) I went to see a different doctor and after 10 minutes I was sent to the hospital. Easiest way to find out though is push on ur stomach and see if it hurts more when your hand goes into it or out. Out is not good.