birth control
"I have been using the Nuvaring for 4 or 5 months now and really love it overall aside from one annoying side affect. It is super convenient, easy to insert and remove, lightens my period, and has caused no emotional or physical side effects but ONE. Gas. Bloaty, trapped, frustrating, painful gas. It's very unfortunate because otherwise, it's a great birth control. 
I've dealt with it hoping it would go away after a few months, but it hasn't. If you think it's an insignificant enough side effect to cope with, maybe it's the right one for you to try. I'm considering changing to a different one at the end of my next cycle."