Am I going crazy or is it my IUD?

So, I got the Mirena put in two days ago and there is some crazy stuff going on. I'm not sure if it's because of the IUD but I've been extremely hormonal and sensitive, talking pregnancy hormonal, I'm crying a lot, getting angry then I'm fine then super super sad for no apparent reason, I mean just mood changing like crazy, kinda feel like I'm going crazy, just wondering if anyone else is going through anything similar or has in the past, and if it's something I should worry about, maybe something wrong with the IUD, idk??