It's normal to gain a couple pounds during this time of the month - and ditch them when your period is over. If you feel like a water balloon, pull on some loose, comfortable clothing. Don't even think about using a pair of pliers to pull up the zipper on your favorite jeans. It's not worth the discomfort. Avoiding salt immediately before and during your period is also a good idea.
Salt increases water retention.
And it has happened to almost every woman. First step is damage control. Tie a sweater or jacket around your waist or untuck your shirt. If that's not an option, have a good friend walk directly behind you on the way to the bathroom. Find the closest tampon or pad .