An important aspect of your query that was missing is your age. Hot flashes can occur in association with many differrnt conditions, but one of the most common one is menopause
If you are around the age of menopause, then you should visit your doctor for further advise. But if not, then your symptoms could be associated with a hormonal
imbalance, infections, conditions of the inner lining of the uterus
So please visit your doctor as an online consultation will noy suffice in helping you much at the moment.
Hope this suffices.