Walmart cashier hit my belly

So today after my appointment, I went grocery shopping. As I’m trying to get my bags, the cashier spins the bag rack super hard and rams it into my stomach… all I got was “oh, sorry..” I immediately called my doctor because I already fell last week and ended up with a slightly bruised tummy. They told me to come back in if I had any pain or bleeding, or she slowed movements. I ended up contracting ALL the way home. I live an hour away, they were accompanied by bad lower back pain. Anyways they’ve not been constant, it just so happens ANYTIME I sit, they start back up. I’m not sure if she caused this, or all the action I did today. 37+4 and really hoping miss makes her debut within the next few days…preferably on her daddy’s bday! Anyways, just kinda wanted to rant, but also ask if anyone else is having this problem? They’re consistent and painful, but subside when I keep myself busy. Sit down, and they’re right back at it.