Cramps with IUD - how long?

I had a copper IUD put in yesterday. Went ok a bit uncomfortable (dh thought i was going to pass out) but all good. Anyway i have had quite bad cramping since (dr said to phone if it got more painful than having it put in), it is worse when i bend over or stretch for something. Just wondering how long this is likely to continue?
I am struggling to do anything atm. Been taking panadol every 6hours but that isn't really working.

I probably sound like such a wimp, but it would be good to have an idea for when this might get better.

Also is it normal to be able to feel like something is inside me? I feel kinda like i have a full tampon in . Havent checked the strings though because dr said nothing up there for 48hours.

I was cramping very badly for 24 hours. Like 'cold sweats and panadol didn't do a thing' badly. After that it was ok though. And yes I could feel it in my cervix too and it felt a bit like a tampon.

Ok thanks ladies. Seems what i am feeling is normal. Will keep pushing through. This is really our only other choice for contraception so really hope it works. and no i dont want to hear stories about all the people you know who got pregnant with one. lol