premenstrual syndrome
"I was having issues controlling severe PMS/PMDD. Every thing that goes along with PMS to the extreme (depression and irritability) every month like clock work 7-10 days before I would start. I tried everything so I decided to give the birth control pill a shot. I'm on my 6th month and my pms is sooo much better.  It's almost non existent. The one negative I experienced was that the first month I threw up a lot the first day and slowly got better over the next three days, the second and third months I experienced mild nausea and fatigue (flu like). After that the only thing I notice is that every month when I start a new pack the first 5 days I'm extremely fatigued like I've never felt before. Good trade off to get rid of PMS though."