Sex is always painful, random cramps and bleeding, acne around the time of what should be my period (which I don't really get anymore, but that was supposed to happen) which never happened before
I'm pretty sure I had a cyst rupture a couple weeks ago and that was really painful and made me incredibly nauseaous, but that isn't necessarily connected to the IUD, I just feel like it probably is.
Fun fact: If you read the Canadian version of the Mirena pamphlet, it says that women with history of depression/anxiety/etc. shouldn't get it. The US version does not say anything of the sort.