Painful bloating... Help!

K
Having the worst gas pain and bloating! I generally take 1 colace/day but didn't take one yesterday and have been paying for it all day. I've taken 5 Tums and a gas-x pill (and I hate taking anything while pregnant!) I'm 8+6 and didn't have this with my first. I'm in a lot of pain and it's hard to stand due to heartburn, gas and stomach pain (upper stomach, no cramping). Any remedies or advice?