Thank you for your question. Often we find the act of breast feeding will change the menstrual cycle, acting as a form of natural contraceptive. But in your case more than 9 months has passed between the cessation of breast feeding and the onset of your current symptoms so I don't think there is any relationship.
What you describe sounds most likely like a vaginal infection, most likely candidiasis. I would advise seeking professional help to confirm diagnosis and formulate both pharmaceutical and natural otions for treatment. You are welcome to contact me individually at www.healthnation.co.za for an appointment.
Many thanks and warm regards