Wow. All of these shared experiences are so very similar to mine. I wish I had worked on researching this BC method more before I agreed to the insertion. I began my Mirena journey in the fall of '06 at 30 years old. Since that time I've had more Crohn's flare ups than I have since I was diagnosed at 11. I've also experienced all of the same symptoms that have been previously listed: severe headaches, weight gain, moodiness, uterine pain, back pain, fatigue. Most of these symptoms occur during my period and have grown progressively worse in the past 4 months. I never made a connection until the past few days and had a gut instinct that my progressive weight gain and the Mirena had a connection. I work out 5-6 times a week for an hour and eat very healthy cutting out sugar, snacks and carbs. I've made an appt for tomorrow to have my Mirena removed. I'm hoping that I can rid my body of all of the symptoms and find the healthy body that I once knew. :)