Thanks for the query.
If you underwent pap smear
long back better to go for it once again.
And if the result comes abnormal this time go for cervical biopsy
Along with this physical examination and ultrasound
examinations are needed to find out the cause for your problem.
If no structural abnormality is found then the possible cause could be hormonal
Intake of hormonal pills with your doctor's advice may possibly decrease the symptoms in case of hormonal imbalance.