birth control
"I had IMPLANON, implanted in August 2009. I had just ended my period and after I got IMPLANON, I didn't get my period of about ten months, then out of nowhere I got it. For months it was like that. I gained 20 pounds, I changed my eating habits and was even working out with no weight loss..It was really making me depressed..and I was constantly moody and easy irritated.. I was always yelling at my boyfriend for every little thing. 
So Jan. 2012, I got it taken out, at the moment I am on nothing at all, I've lost three pounds. I'm not as moody and my boyfriend and I have been having better times. But birth control works different for everyone, give it a try!"