I would see the doctor esp if it hasn't gone away or gets worse. My guess is it could be your spleen, pancreas, or an ulcer - definitely get it looked at.

Sounds like what I've been going thru. And a lot of others as well, apparently. Look for the thread, five pages long about this subject.

http://ehealthforum.com/health/topic33917. html

New Topic, with Doctors intervention on the way.

VISIT

Rib Sturnum Pain
http://www.ehealthforum.com/health/sturnum -ribs-pain-t143460.html

Brigzy.

i am 14 and i have these same symptoms... can you please help. its only on my left side. i get really sharp pains somewhere around the hip bone. it is hell when i get this.i dont know what it is. i can barley walk. all i ever want to do is sleep. im always tired and very unfocused. i usualy get the pains after my period ends or sometimes during. then it will contunie for weeks after... if anyone knows anything can you please write me, thank you =]