Interesting side effects, that's for sure! I haven't had a single issue with my Mirena IUD. The only side effect is that I have an almost non-existent period, and I've had the Mirena since July 2002. My one and only child was born in May 2002 and the Mirena IUD was my choice after examining all of the options.
This has been, by far, the most successful method of birth control for ME, and I'm 39 years old so I've had MANY years of trial and error.
I'm sorry to read that so many people have not had a good experience with this. I didn't do well with "the pill", and I also have many friends who haven't done well with the patch or any other hormone-based control methods.