My IUD makes me wonder why anyone would go through the horrible pain of childbirth...

Morgan
My gyno said that I'd experience symptoms of pregnancy with my IUD which is ROUGH. 
I am the kind of person that doesn't want babies for a long while, so the IUD was right for me... I got Skyla. Now, I'm experiencing crazy symptoms. I feel sick a LOT, and I also get warm and dizzy often. On top of that, I spot on and off quite a bit and feel like someone literally punches me in the gut when I have period cramps. 
My gyno said things like this could happen on and off for the couple months after insertions.
Has anyone else experienced these symptoms? If so, how long did it last for you and how did you find relief?