Backstory: I've had severe depression for about 12 years. It was made worse by oral contraceptives, so I stopped taking them. It got better (finally) with a bunch o' drugs. However, my periods were getting 'dangerously' heavy (my doc's words) and no one could figure out why. I couldn't take Pill again, so we tried the Mirena. Two months ago, my mood took a major nose-dive and hasn't improved. I need to talk to my psychiatrist, and I'm pretty sure she's going to ask about the Mirena as a possible cause. However, I think it's not the Mirena because the 'bad mood' is constant -- not tied to my menstrual cycle like it was on the Pill. But, I wanted to get y'all's thoughts, too.
Someone posted a similar question over on IUD-Divas (http://iud-divas.livejournal.com/3031901.html) and I'll follow that thread, but wanted to cross-post here in case there are Mirena users here who have thoughts, too.
An aside--thanks for your reassuring words re: my friend with the breast lump. It was really helpful. They found she had a calcified mass in there (!!!) so she's having a needle biopsy on Monday. But, again, I appreciate all of your support.