Menstrual Pain Causes
Prostaglandins are chemicals a woman's body produces that cause many of the symptoms associated with menstrual discomfort. The tissue that lines the uterus makes these chemicals. Prostaglandins stimulate the uterine muscles to contract. Women who have high levels of prostaglandin experience more intense contractions of their uterus and more pain. Prostaglandins may also be responsible for vomiting, diarrhea, and headaches that accompany painful periods.
others include:
Endometriosis,Fibroids and adenomyosis,Infections in the reproductive organs,Abnormal pregnancy, such as an ectopic pregnancy (pregnancy in the tubes, outside the uterus)IUD (intra-uterine device) used for birth control,Ovarian cyst,
Narrow cervix
Menstrual Pain Treatment Self-Care at Home
The best way to relieve painful menstrual cramps is to take an anti-inflammatory medication. Ibuprofen (Advil is a familiar brand name), naproxen (Aleve, Naprosyn), and ketoprofen (Orudis) are available without a prescription and are effective at blocking the effects of prostaglandins.
it would help if you got on birth control pills.