Hi all, I know this is an old post but wanted to throw my two cents in. Six weeks after I had the Mirena put in I had started having terrible back spasms. When I looked in the mirror my back was curved so badly that I looked like a human boomerang. I went to physio and the chiro and they both said that I was just having muscle spasms, offered some treatment and sent me on my way. No matter what I did they wouldn't get better. It got to the point that I couldn't take more than a few steps without having to stop because of a major spasm. I even had one while i was sleeping and woke up grasping onto my boyfriend’s leg. Finally I stumbled across an article saying the spasms could be caused by my IUD. I went to emerg as I was out of town at the time. The doctor checked it and said my IUD was in a good place and he couldn't see any issues. He told me that he would take it out but did not think that was the root of my problem and that it wouldn't help. I told him I wanted it out anyway. After he took it out I didn't have another spasm. Not one. My muscles were still tight, likely from having atrophied so much over the past week and a half. over the next few days my back felt better and better and I had no further issues. I even went skiing the following day. I went to see my GP the next week and she said she didn't think the Mirena would cause my symptoms either. Do not listen to your doctor in the situations. Listen to your body. My doctor doesn't believe to this day that my Mirena was the cause of my issue.