I have had the Mirena since 2000, 2nd one now. I have not had a period since my daughter was born. I felt like it was a relief for some time then I worried that it may not be healthy. I've heard from some people that it is a normal side effect of the Mirena and have heard that it is unhealthy from others. Could someone please shed some light on this situation? Do I need to worry about it? I'm nearly 40yrs old, done with having children, and approaching menopause.