How long will I continue to have hot flashes?

Can you answer mzvtul’s question about Menopause?:

55 yrs old. Quit having periods 4 years ago, but the hot flashes and insomnia are still going on. Hot flashes extremely severe, especially at night. I’ve read reports that these types of symptoms should only last about a year. I have congestive heart failure, so I cannot use hormone replacement therapy. How much longer am I going to have to live with this?

Post Menopausal Osteoporosis