It's Been Over A Month Since I've Taken Plan B

It's been over a month since I've taken plan b I've had negative pregnency tests and period but Im sooo bloated I also have found online a lot of women are in my shoes how do you make the bloating go away? I tried drinking lots of water and anti-acids no luck it's been like a month in a half normally I have a flat stomach but now I'm constantly bloated!): please help!):