IUD weight gain

So I’ve got the Mirena inserted, about 5 months ago, and in those five months I’ve noticed I gained so much weight. I did not change my diet, I’m on a keto diet, so I don’t eat carbs or sugar. I also did a lot of yoga, and after I noticed the significant amount of weight gain, I started to run, go tramping and hiking. Plus my job is physically demanding. But I just wasn’t losing the weight and instead I gained 10kgs in two weeks!!!!!

My boss also went through the same thing and she said, that the Mirena is probably why. I’ve gone from 65 kilos to a whooping 90 kilos is less than a year. I don’t find that normal, and I did read that some other women were also experiencing excessive weight gain. I’ve decided to have the Mirena out, but I’m afraid that now I’ll have no way of controlling my intensely horrible cramping and bleeding.

Has anyone else also found that weight gain was an issue?