I'm an 18 year old girl and for about two years I've been getting a sharp stabbing pain in my stomach, in between my rib cage. Some days it's much worse than others to the point where we've called 911. I've gotten tests and it doesn't seem to be heart or lung, we are pretty sure it is connected to the gastrointestinal tract. I've noticed it occurs more when I have to go to the bathroom, but I don't experience any vomiting or diarrhea, just very sharp pain. Any ideas on what this could possibly be? I really appreciate any ideas! Thank you!