birth control
"I'm probably not qualified to review this as I only had it in for 24 hours. I mistakenly read the reviews/side effects after getting it inserted and immediately regretted getting it. Even though I know I might not have experienced the adverse side effects, I was not willing to risk it. I will definitely do more research next time! 
For the 24 hours I had it, I did feel quite nauseous and nearly fainted twice. Other than that, the insertion and removal was fairly painless."