Your female hormones, which, by the way, happen to come from your adrenal gland(fight or flight!) make PMS a more panicky time. You may want to try some progesterone cream, which is all natural and can be purchased at the healthfood store. Soy also contains phyto(plant)estrogens, which is why many women in Asian countries do not have the menopause symptoms we have here, they eat so much soy.If you get the cream, rub 1/4t. into a soft part of your body, I use my wrist, if it absorbs within 30 seconds, you need another 1/4t until it takes longer to absorb. This is the most accurate way to diagnose and treat a hormonal imbalance from PMS. Use the cream daily throughout the month, except when you have your period, just like the pill.
Native American women used Black or Blue Cohash for this purpose, PMS, menopause, and as birth control. Another herb which contains all 4 phytoestrogens is red clover. You can buy the tea at most stores or pick it in your back yard like I do (it's the big pink clovers) dry it and make tea. I have treated a number of patients this way successfully, and they have been very grateful. If your PMS is REALLY bad right now, I would reccomment the cream most, since you can tell by the absorbtion rate how much is needed. You may have to stay on this protocal for up to a year to straighten out your hormones. P.S. I am not a Dr., 4 classes away from my Dr. of Naturopathy, but have worked under Drs. for years and helped treat their pts. Don't want to dispense info. without a liscence, just passing on what I have learned, and what the cream pamphlet tells you. I really helped me when I used the cream, it took about a year, and my pds. went from 7 days to 3, and I had no PMS at all!