"i have had mirena for about a year now and i love it. i got it because of heavy periods. insertion was not bad, felt like a quick hard cramp for a minute then had a little cramping and spotting for the next day. i have had no acne. i have lost 14 pounds no mood swings. i went to a gastrointestinal doctor today with tummy troubles and he said i was the 3rd woman he had seen today same symptoms and same iud."