Help?

I have a doctors appointment today, PNV and NST. It’s at two, but I want some of your opinions before I go. The last couple of days, I’ve had these extreme headaches, like horrible. (I have a high pain threshold, broke every bone in my face and recovered with facial reconstruction and no pain meds) with that said I can’t function these headaches hurt. I feel like I need to take a drill and release the pressure on my brain. I’ve also been cramping on and off. I’m 34 weeks tmrw. Anybody experiencing/ experienced this? What did you do? And what was it?