37w4d and painful pressure

Last night and into today, I have had the worst pressure and pain down my pelvic and vagina. My doctor keeps saying it’s just “lightning”. I’ve been having this since about 35 weeks, but today has been the worst it’s ever been. And my pelvic bone is so sore I could cry. Literally feels like it’s about to snap in half. Is this normal? Like I feel like I sound dramatic, but honestly, it’s truly painful. I know lightning is normal, but should it be this painful? The pressure sometimes feels so severe that it feels like my water is about to bust, but never does. And eventually the pressure just relieves. Course, this is my first pregnancy so I have no idea what it’s supposed to feel like when your water breaks anyways haha. I keep telling myself I’ve just got 2 more weeks (and some days) and then it’s over, but I feel like I just can’t make it. I need some advice😩