This is my Mirena story. I got it inserted just over 4 months ago. Other birth controls were not working very well for me, as I had irregular bleeding with them often. So my doctor recommended Mirena. Insertino was awful. It hurt terribly. I almost passed out in the office from the pain (and I am not a wuss when it comes to pain). On the drive home I had to pull over to throw up - I was so nauseous from the pain. The extreme pain (which, to me, was worse than when I was in labor) lasted for a few days then subsided.
I bled for 30 days straight after insertion, which was awful. I also have experienced hair loss, acne, irritability and weight gain (without changing my diet and exercise levels). Over the past four months I have also had awful back pain and extreme cramps that seem to come randomly. My periods come and last 10 days.
Recently, I decided that I'd had it with the Mirena. I went to the doctor today and had it removed. After talking with her about my side effects, she was very supportive in my decision to have it removed. She believes I may be overly sensitive to the progestin in it. Removal was super-quick and easy and virtually painless. I'm looking forward to life without this thing!