Dear bybygirl there is no reason to worry. More then 95% of ovaric cysts and follicle disorders are benign. Usually hormone disbalans trigger ovary hypertrophy and menstruation
abnormalities. Your pain can be caused by ruptured follicle or cyst. You should check your estrogen
levels . Also laparoscopic examination can be performed to clearly visualize your ovaries and also can be theapeutic .
Ovaric cancer are the one of the worst tumors but it would be seen on US as a fast growing mass, you can check tumor markers just to be sure.
Wish you good health, Dr. Ivan Romic (Rominho)