"i have had it since march 2012, it did not hurt when i had it put in. i have noticed that i have alot of mood swings and i have gained over 25 lbs since i had it put it. i still eat the way that i always have and i cant understand why. i talked to a different medical dr, and they said that was one of the side effects of the mirena. if my dr. had of told me this i would of never had it done.. it has controlled my bleeding alot but  i still spot alot through the month."