"thank you for these reviews. finally i realize that i am not crazy. i have had the mirena for almost two years. insertion was almost painless and at first everything was wonderful. slowly i have noticed awful side effects. mood swings, hot flashes, panic attacks, left arm swollen, insomnia, and too many more to count. i have been to the hospital on four separate occasions thinking i was having a heart attack, turns out it is stress from all the other health problems. i am having this removed. i hope everything returns to normal soon."