Here is a search for lower left quadrant pain via Mayo Clinic. http://www.mayoclinic.com/health/abdominal-pain/MY00390/DSECTION=causes
You will see there are several issues that can present on that side. You can rule out some or most but a few should give you a good idea of what is going on and with a bit of extra reading you should be able to get a more specific symptom/cause/issue, at least enough to give the docs more helpful information.
Good luck and don’t let them turn you away.
Right where the stomach is.