Well sure wish I saw this site before I had mine put in.I am 39 with 1 child and may or may not want another. I have a low tolerance for birth control pills, tired of using condoms and practically have just used my body changes and a calendar to plan for the risky times till now. I had the Mirena put in on March 3 2008 and have experienced such a huge change in myself that I decided to google side effects tonight after only a week. I have no energy, my sleep schedule is all worked now. I cant sleep for more than 3-4 hrs at a time. I have the flu like symptoms going now, headache for over 6 days. I am feeling mini heart palps and pains in lower back and legs and the nausea is getting old already. Reading the posts here, doesn't look like I am going to look forward to the rest of the symptoms either. I know each individual responds differently to things and will stick this out for a few more weeks but it looks like it wont be around by this time next month. Good luck to each and every one of you ladies. Peace