I'd recommend that you go.
I had endometriosis and ovarian cysts that would rupture every month (and then twice a month after a while), and there was no build-up for me. Just one day I was walking to class and I started seeing spots and thought I was going to pass out from the pain. I had a really bad case, though, but you should really get yourself checked out anyways. Endo is a really common disease, but you wouldn't know because it never gets talked about.