Random Flare Up

Ever since I went on Norlutate I haven't had to take more then an Advil the first 2 weeks but now it's been a month and I woke up in excruciating pain, warning tmi:

1st it was vaginal pain that was pulsing inside and it hurt really bad likw it was on fire. Then it moved up my abdomen on my right side where it made me grasp my stomach and then it moved to my bowel. I never get constipated, I'm either normal or have diahrria, but today it hurt to push right where my right side was. What could this be?

I'm now laying in bed with 2 heating pads unable to do anything because it hurts.

I have an appointment with a specialist on Halloween, my doctor told me that's why I have to wait so long.