Mirena and wellbutrin

I had the Mirena fitted in October 2005, I bled on and off for about 2 weeks and my body started to adjust.
I have always suffered with acne, but in the last year my skin has ruled my everyday life and confidence. I have spent hundreds of pounds trying all sorts of lotions and face washes to combat the spots that are so painful. I cant help but think that the Mirena is making my skin worse. I am now on a second lot of antibiotics for my skin, a different type, to see if they help.
I have a bloated tummy every so often and I haven't bled for over a year. I cant help but feel I need to have a period. Is there anyone who understands what I mean.. so lost and confused with it all. My doctor today says that I could try the copper coil so I can have a period, but she told me they can be heavier and more painful with the copper coil.