Has anyone had the Mirena taken out and immediately replaced with...

Has anyone had the Mirena taken out and immediately replaced with the copper IUD? I'm having this procedure done on May 20, 2008 and I'm really scared that doing this will further hinder my weight loss effort. I've had the MIrena for a little over 2 years, and like many many women I only have very recently started to connect Mirena with side effects I never imagined. It was inserted Feb. 2006, and immediately I turned into a horrible, moody, extremely emotional basketcase. I never even thought twice about the Mirena being responsible. My husband and I thought I was postpartum depressed. I lost everything, meaning my husband, my home, my life, and my mind within 3 months of insertion. I had already had one child, and after she was born I had PPD, but not to the extent of attempting to kill my husband and turning his mother in to Social Security. This was a horrible time in my life and I wish I had known that it wasn't just postpartum behavior. Recently I've noticed the increase in my weight....a problem I never had before and I don't like it. My skin is a big oily blemish nightmare, also a problem I never had before. I'm always nauseated, I am depressed still and now summer time has become dreaded because I can't stand to look at myself and it's too hot to cover all the way up. I'm terrified of removal because I have read many stories saying that you go through a worse emotional roller coaster to get the hormones out of your body, but I suppose I've done it once, I can do it again. If anyone has had the Mirena removed and replaced with the copper one, can you please tell me what to expect??