I am sorry to hear you are suffering from premenstrual dysphoric disorder (PMDD). For anyone who does not know, this is PMS times 20. The only information I have found is the typical things you would use to treat PMS. Many women try Evening Primrose Oil and say that it helps. I personally have been taking it, but am not sure if it's helping or not.
It is suggested that women with PMDD take an antidepressant medication if their problems are unbearable. I personally am against it, but others will say it's beneficial. I would seriously suggest asking around and getting advice from people who have taken these meds before starting them.
Sorry I could not be more help. I am going to post some info about PMDD in a seperate thread for others.