The pain 😩

I'm 38+2 and I'm in so much pain right now I don't know what to do. I can't even lay down or try to go to sleep. The fact that it's not contractions is what's really killing me the most. I'm feeling excruciating pressure on my pelvic bone and vagina. It actually feels like she's trying to tear herself through and find the way out. It's not every once in a while, this is a constant pain. I don't know if I should call my Dr or not. I have an appointment tomorrow morning.