When would you find cramps worrisome?

piglet6609

I've been having consistent cramps for about 4 days in addition to lower back ache (not consistent). I know cramping is normal and it is not accompanied by bleeding. I do not remember it being this consistent with DD. I'm not doubled over in pain but it's enough that I'm noticing it and not feeling well. It's like heavy period cramps and like I said, it's been pretty constant for about 4 days. Would you be worried/call? Has anyone else had cramping this much? TIA