Hi, I am thinking of having my Mirena removed. It has caused me great weight gain, which i cant shift no matter what i do. The doctors say that weight gain is very un-commen when you have the Mirena. I think this is untrue. I have seen loads of comments on this , and it appears everyone is having the same issue. I've only had my second one in for 3 years and i'm having periods again for a whole week. It also makes sex uncomfortable. Is anyone else having the same experiences ?