Oh Jesus, where to start with the Mirena.
I couldn't take the pill, problems with weight gain, migraines and depression, and they told me it'd have no side effects as it was localised to my uterus.
Bollox. I put on 4 stone in 4 months, had major headaches, no energy, pains in my back, legs, abdomen, migraines, and depression. Oh, and no libido. It was like the effects of the pill but worse. Over the two years I was on it I couldn;t loose the weight. Dr refused to believe that it was the Mirena.
After finding other stories similar to mine I went to a well woman clinic and had it removed. The nurse there told me she'd spoken to lots of women about this and there were loads who had the same experience. She said it seems that if you are sensitive to the pill, you'll be sensitive to the Mirena. Within weeks of it being removed I was loosing the weight, and the pains stopped.
Horrible horrible thing.
Google Mirena side effects and you'll find lots of stories similar to mine.