birth control
"After a few years of not being on birth control I decided I needed to go back on it because the out of control mood swings and irrationality during PMS paired with the completely dibilitating back pain I was experiencing during the first two days of my period were ruining my life. 
Month 1: rough. Crazy emotions for the first two weeks. I could barely sleep for the first 9 days. My skin and hair got very oily and I got a couple pimples which I never do. My boobs got bigger without weight gain.
Month 2 - spotted for 1 day instead of a period but still had PMS mood. No back pain. Skin and hair A+. No weight gain.
In the months since then I haven't bled or PMS at all but my back pain is starting to come back in waves so I might discontinue."