I'm on the implant, and I've been on it for about 2-3 months. I've had constant light bleeding since It was insterted. However for the last 3 weeks I have not been feeling well at all. I'm emotional, I have bad back aches, headaches, my hips hurt. I feel sick ALL the time. Sometimes I vomit quite a lot. And I've also had a few belly aches and constipation. Sex is also painful.