polycystic ovary syndrome
"I was put on Microgestin FE 1.5 for multiple issues. My ovaries were enlarged, I had a massive cyst on my right ovary, hormones were out of whack and I was in constant pain. My OB put me on this medicine to shut my ovaries down and level out my hormones. 
What I experienced with the medicine was this: increased energy, loss of appetite, weight loss, considerably less pain...and just feeling like a human again.  I understand that most women don't have this type of experience with any type of birth control but this was mine with this one."