Hi I haven't had chance to read all of this thread but wanted to share my experience, I first had the copper coil as I was told it was the only form of contraception other than comdoms that doesn't contain hormones (I have more female hormones than usual and can't take the pill) I had it fitted and fainted but apart from that I had no problems what so ever for 5 years, regular light periods and hardly any pain! I had it taken out to have my daughter luckily I managed to conceive within 5 days of having it removed! I then had my daughter an exactly one year later went back to the docs to have a new coil fitted, however I was told that they no longer offer the copper coil and I would have to have a 10 year mirena coil. Fitting it this time was fine, again no problems, untill this year (3years in) I got pregnant on it which resulted in a miscarriage, it wasn't untill this happened that I started having problems with the coil, heavier periods, lasting longer than usual, spots, mood swings, weight gain, headaches, after reading some of your posts I now think this could be linked to the coil, I am going to make an appointment at the docs to get checked out I think.