Depression and weight gain symptoms and conditions

I just don't know what to say. I had the Mirena inserted in May 2007. INSERTION WAS VERY PAINFUL......almost like having a contraction. My doctor had a hard time inserting it and almost gave up.....so did I. After insertion, i had a period the next week that lasted for 14 days. I went back for them to check it and he could not find the strings. Finally after about 20 minutes of searching he found it. My periods have gone from regular pre-mirena to 8 days on post mirena and in April 2008, I had 2 periods. I thought this was suppose to slow down or stop periods. I have gained 20 pounds in a year, started having migraines again, feel and look like I am 6 months pregnant, am very testy and irritable, cry at the drop of a hat, spot after intercourse, and have palpitations. Now I read that the Mirena can cause thyroid problems. I have kidney disease and do not need anything to deal with. I thought I was going CRAZY until I started reading posts on the internet. I wish I had known all this before I got it. I have an appt. to have mine removed June 28. That is the soonest I could get....If I could take it out myself, I would. Has anybody else experienced palpitations?