What's a simple, cheap treatment for my bloating?

Sodium in your diet. Premenstrual bloating is a common and bothersome feature of ovulation and periods. It helps to lower you dietary sodium. No just salt. Sodium is present in all sorts of prepackaged food. Read the labels when you do your grocery shopping . Candy, carbonated drinks and baked foods may be high in sodium regardless of their taste.
Avoiding salt. Menstrual cyclicity tends to accumulate fluid or bloating towards the end of the cycle and avoidance of salty foods can "treat" the bloating by prevention of fluid retention. Chronic use of water pills(diuretics) can cause a absence of potassium causing leg cramps or in severe circumstances cardiac irregularities or arrest.