I have experienced most of the side effects that others have list...

I have experienced most of the side effects that others have listed here. Mental fog, dizziness, blurred vision, horrible fatigue, cold intolerance, weight gain, joint pain, etc. These started approximately one month after insertion. I have been to my PCP multiple times and have been evaluated for things ranging from hypothyroidism to lupus. All tests have come back negative. No one has once suggested that it may be due to the Mirena. I am going to have it removed at my next visit and I would be willing to bet that many of my symptoms will be resolved.