Bad gas pain

A❤

I'm 24 weeks. And it's like every other day it seems like, my belly is so tight and bloated with gas pains. Or atleast that what I'm assuming it is. I don't eat a lot of greasy bad foods I don't get it. On bad days like today It's like a knife is my stomach and with each move it digs in a little deeper! Gas ex does absolutely nothing at all.. does anyone relate to this? Have a remedy? I got from another post on here, to go on all fours and rock your hips from side to side and that does help but not much.