Thanks..... I had been reading up on some stuff related to the gall bladder, pancreas, appendix, etc etc etc.
The gall bladder symptoms sounded most likely (especially because appendicitis said you typically get a fever, and my highest temperature was 100.1). I don't, obviously, WANT to find something wrong; I have PLENTY of other issues to deal with, what the myriad of related/linked medical conditions I deal with and all the meds I take (that's not even including my psychiatric conditions and medications) .
But yeah; my doctor's office is closed tomorrow, but I will give them a call on Friday (unless it comes back worse; then I'll do urgent care). This is the longest the pain has ever lasted, though; it's going on 4-5 hours now. I am a little scared because I get so easily sick.