I have SEVERE cramping, nau, and sickness when my cycle comes. I know it may sound funny, but if you like bannanas, try to eat one or two when that cramping starts....it helps ease the pain and cramping:)
Do you have a gynecologist? If not, find one and go for a complete exam. Sometimes severe pain at the beginning of a monthly cycle indicates endometriosis. Endometriosis can grow on any organ in the abdominal cavity (and very rarely elsewhere).