First of all a better Lifestyle and Happier Living will work so well in PCOS as it's manageable and reversible
At any age these levels of Vit D and
B12 needs supplements but still age is important to evaluate her.
We're here to treat underlying cause and this needs proper history
Especially when it comes to
Kidney stone it's important to know about location, size and detailed reports
PCOS is something what is related to her Lifestyle, associated clinical conditions, symptoms, food and dailylife stress, treatment is not based on medications only because it's more about to learn better way to live.
Next Steps
Start with IM
Vitamin B12 and Oral Vit D supplements followed by maintenance oral supplements
focus on balanced diet
USG Pelvis and Abdomen, CBC, RBS,
TSH, RFT, ESR should also be done
Health Tips
avoid junk, spend some time in morning sunlight, do exercise