IUD help!!

Destiny

So ladies I got an IUD inserted in October, and here recently my periods have been going on for like 2 weeks and also every once in a while (not while I’m on my period) my left lower abdomen (ovary) will start like cramping but it’s not like a period cramp. It hurts so bad that it brings me to my knees every time. It lasts for all of about 3 minutes, but it also pulsates some too after the sharp pain, and after it stops hurting completely I bleed a little. Not bright red almost like brown discharge. Is this normal? Is it still just my body trying to get used to it? Should I go get it checked out?