HELP PLS

So I’m 34 weeks pregnant with my second baby. I am having such bad gas pain and it’s making me sick. Like i can’t go to the bathroom even though it feels like i really need to. I’ve sat in a warm bath, on a heating pad, tried forcing myself to go, etc. nothing is working but the pain has me hunched over when it happens. It does ease up for a little bit at a time (thank God). What can i take or do to get rid of this?!