Hello- I am having my yearly physical tomorrow with my doctor. I am seriously considering having my Mirena removed. I have had it for 4 years now and thought that everything was going good. I have just been prescribed antidepressants for the third time in the four years. I was told that i like a lot of people cycle through a depression but now I am thinking that it is due to this. In the last year I found out that I have Crohn's disease. Could somehow this IUD have caused this? I wonder. In the last year i have gained 45lbs and cannot lose it no matter what. I have had no bleeding other than a little spotting now and then but nothing major. I do have headaches very often. I cannot believe that I was not told of these side effects when I had it inserted. My sister-in-law, who is now pregnant, plans use this birth control after she delivers. I will point her this way and let her know what I have learned. I am so glad that there are sites like this one. I will learn more about my birth control before I begin using any now. Thanks to everyone who has posted.