Debilitating period pain

Does anyone else get near debilitating period pain? It doesnt happen every period, but when it does happen i cant moved and im shaking and throwing up from the pain. Ive even tried taking hydrocodone and it didnt help at all. I know i need to see a doctor, but can't at the moment. Does anyone have any suggestions or know why this would be happening. Its been happening since i got my first period, which was 7 years ago.