K.W.
I had problems with my IUD. After they ran about a million tests and nothing turned up (I'm also almost 30 and pretty healthy)I had them remove it. It has been six months and I'm still not "normal" compared to what I was before I started having kids. After asking a lot of questions and reading a lot of material, I've decided to wait it out. If they've checked the hormone levels then you are probably in the clear for the pituitary thing (my doctor thought that was my problem at first). I decided to just be patient and not take anything for a while. Let your body do what it needs to. If you are trying to get pregnant and can't then I would see someone. Otherwise, just try to eat well, get enough sleep and exercise and enjoy your kids.