Serious growing pains? Help.

Ca

I'm having twins btw.

So today I've been hurting super bad. Like a simple bump in the road hurt my uterus. And when I get up from standing it feels like I'm stretching it out or something. It's a sharp pain but not super sharp, it's there and uncomfortable. My back hurts too but that's nothing new lol. I just didn't know if you ladies had any advice?