unknown pain- advice appreciated

Elizabeth 🇬🇧

Hi!

I'm a FTM and 32 weeks pregnant. Woken up this morning with stomach cramps; across the top of my bump and then going down the sides. They were only lasting a few seconds but have started to be a bit more frequent and intense. Almost feels a bit like burning?

I'd thought they were trapped wind (🙈) but I've tried mild heat and moving around which hasn't helped. 

Any thoughts on what it is? From everything I've read about braxton hicks it says they aren't usually painful, and these definitely are 😂

Thanks in advance!x