I had Mirena inserted Nov 2008, one year after my miscarriage. Everything was great at first. I had it inserted on my lunch break and went back to work with no problems. Periods were shorter and lighter. Now, 6 months later I've noticed problems. About 2 months ago I was working over night and felt a sharp stabbing pain in my abdomen. I went to the bathroom and was bleeding a lot. More than a period. I went another hour, and the pain was almost unbearable. I left work and went to the ER. They said I looked fine, that Mirena hadn't moved and nothing was torn. Gave me some pain meds and sent me home. I've had short sharp pains ever since.
I was diagnosed with depression my 6th grade year, when my grandfather passed away. I've been battling ever since. So, when my depression got worse after Mirena, I didn't think much of it. But the past month or so, my thoughts have been like some other users have described. I've had very scary thoughts, and boughs of uncontrollable crying for no reason.
My periods have stopped, with some light spotting every month. I do still have cramping, but no bleeding. I'm thinking of making an appt with my OBGYN and having it removed now that I've read all of these posts. I had no idea of any side affects other than interfering with menstruation. If you don't have Mirena, make sure you research more than I did. If I had, I probably wouldn't have gotten it. I really wish I would've researched more options because now I'm beginning to regret my decision.