ParaGuard IUD and period cramps

Alli
Hi guys so 3 weeks ago I got my ParaGuard IUD inserted and it hurt like a bitch anyway...... about 2 days ago I got my period early. My cramps are so bad I can't get out of bed nor can I stop crying. Every 2-5 mins I get extremely severe cramps for about 5 mins, it's AWFUL!!!!!!!!!! I also get soooo dizzy and nauseous when these cramps occur ): .. Has anyone ever had this problem with their IUD???? Is this normal? The pain feels as bad as the day I got my IUD and was literally laying in bed sobbing all night. 
Also, the day I got the IUD my doctor prescribed me A muscle relaxer.. Do you guys think that this would help? I've never taken one..