period

I have horrible periods, extreme cramps, heavy bleeding,vomiting, and fatigue. I take iron on a daily basis because I already have issues with anemia and it helps on a period-less day wih the fatigue. Midol does nothing for my cramps. What does everyone do to make their period more endurable? I have tried everything from a heating pad, to a hot bath/shower (that seems to help the most but I can't be in the shower every twenty minutes especially when I have to work).