I was on Prempro HRT for 18 years, 10 years at regular dose and 8 years once a week, just enough to control symptoms (hot flashes, sweats, etc.). Now I have been off it for 3 years and still going through full blown symptoms. No one told me I would to through menopause again and it is back with vengeance. My internist just smiles and says to be patient. My quality of life is affected. No 73 year old woman should have to explain hot flashes. Is this normal? How long do I have to suffer this?