Thanks for the query.
can present with symptoms like delayed periods, so the irregularity in your cycles could be due to that. And that may not be premature menopause
You once consult gynecologist and get examined to find out the persistence of yeast infection and also go for ultrasound
If she suggests you can go for culture sensitivity of the swab taken from the clitoral area.
After completing the course of medication you may completely get cured with the infection.
In ultrasound the present condition of the PCOS can be noted and if needed you can go for treatment.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429