Thanks Girls / Ladies
I've always had period cramps so badly that I usually can barely bring myself to even walk (that's assuming I can) I generally lose conciousness and the whole lot - scares the SO to heck and back.
I've explained it to guys before by getting them to imagine that someone has just placed a G clamp on their testicles and is gradually tightening it so that it remains at that sickening level of pain that they get when they get kicked in the groin - then having that pain for a few days.
Anyways I am glad my little comment made so many of you feel better (well kinda)