"i was really excited for mirena because i suffer from seveer cramps and a very heavy period. this definitely helps that. but my period was irregular, showed up for 2 weeks at a time sometimes, every other week, after sex....there was no rhyme or reason and incredibly annoying. i also had other symptoms that i did not link to mirena initially until i started doing research and it all made sense. depression and anger slowly crept in. i chalked it up to being exhausted all the time (another symptom) and not having patience now that i had 2 kids instead of 1. terrible mood swings. i gained 30 pounds. i always had acne on my chin. my hair thinned terribly. again, i thought these were from having another baby, but 2 1/2 years later &amp; its the same"