Severe menstral cramps, what should I do?

So I'm on my period and it's worse than usual. I have blinding lower back cramps, a fever, dizziness, and fatigue. No irritability though. I've tried everything. Heating pad, herbal tea, moving around, low sodium intake, tons of water, and vitamins. Nothing's helped and I'm in a lot of pain. And lucky me, there are no pain relievers in my house. Does anybody have any remedies?