I have been having left lower pelvic pain for 4 years. It usually occur before period start & then after the start of period pain ends & starts again after the end of period. It is usually feels like stretching inside. Ultrasound shows cyst in left ovary. But i have taken contraceptive pills for 3 month . This procedure 2 times but pain goes on worsen. When taking medicine , i was quite alright . But then i was diagnose with endometrioma ( chocolate cyst) in left ovary and fibroid in uterus. I have taken danazol. While taking this, i had no pain. But after taking danazol for 3 month i again have that pain.