Hi, and thanks for your medical question on eHealth forum!
You need to find the cause of dizziness along with proper treatment of PCOD. You need to get examined to rule out a few things such as low blood pressure, postural hypotension (fall in blood pressure, cervical spinal nerve compression, hypoglycemia (low blood sugar), severe anemia, an underactive thyroid (called hypothyroidism), overactive thyroid (called hyperthyroidism), adrenal insufficiency (called Addison's disease), GERD or gastric reflux, and internal ear infections. Take plenty of fluids and see if it helps.
It is difficult to comment beyond this at this stage. Do consult your doctor. Take care!