Iud post insert experiences/bleeding and pain

Messua

Hello everyone I never posted here but I thought it could be my best shot as advice since the Internet seems to have so many different answer. I had an iud put on thursday evening - I had cramping and spotting for the first two days - I also had a sharp lower left back pain echoing in my knee . The pain has died out but I still feel uncomfortable- like someone has scratched me from the inside and bleeding like a full on period since last night ... Is that normal ? Please share some of your story :) I am wondering if I am just paranoid .....