i have suffered chronic pelvic pain post menstruation for many years. i am currently under a gynaecologist. for a few years i was treated for endometriosis without diagnosis and put on the oral contaceptive pill 3 monthly, then break for a week. with no improvement, i saw another gynaecologist who performed a dignostic laparoscopy which proceeded to right ovarian cystectomy for a 5 cm haemoragetic cyst. my pain is still the same, occuring at exactly the same time, 5 days after menstruation. this pain is severe, for which i have to sit on the toilet and feels like my bowels are involved, yet still relates to my cycle. the pain affects my sleeping and lasts on average 2 weeks, even though i have restarted my oral contraceptive pill. please, do you have any idea what this could be, as it is affecting my life and making me depressed.