Yes!! I also had the Mirena IUD and the first year was great... Then I would get the same symptoms u described every other month. Used to drive me nuts... It is the hormones in it and it is quite common to experience that.
Hi there its coming up to a year this month I had a mirena instu, I think its great for me I was over the bleeding, and the mirena has been a godsend. Every month I would get back pain, headaches, and spotting to a degree of wearing a tampon, it is the hormones and yes it is quite common to experience that.