I've been treated for PMS with Zoloft and the birth control pill, both of which made the PMS worse. My doctor is suggesting chaste tree berry to try to control the hormone, then placing me on chromium to level off my blood sugar.
Sugar seems to alter mood in only a tiny percent of people, if at all.
This misconception about sugar is one of the great food myths in our culture. A teaspoon of sugar has 14 calories. Because of this myth, you can watch people in restaurants gulp down a 600-calorie dessert and then ask for Equal in their coffee to save 14 calories. On the subject of PMS and sugar, this is a different story. Chromium is at the heart of the insulin molecule and may have something to do with regulating sugar, particularly in diabetics, but I have doubts about its effectiveness for you.