Perimenopause:
Perimenopause means “around menopause” and refers to the time during which your body makes the natural transition to menopause, marking the end of the reproductive years. Perimenopause is also called the menopausal transition. …
The level of estrogen — the main female hormone — in your body rises and falls unevenly during perimenopause. Your menstrual cycles may lengthen or shorten, and you may begin having menstrual cycles in which your ovaries don’t release an egg (ovulate). You may also experience menopause-like symptoms, such as hot flashes, sleep problems and vaginal dryness. Treatments are available to help ease these symptoms. [Mayo Clinic]
Noted in “Perimenopausal women are ‘enraged’ — and no longer keeping quiet,” Rachelle Bergstein, WaPo:
[Comedian Samantha Bee] had been suffering for over a year, she admitted. Bee, who debuted her limited-run off-Broadway show “How to Survive Menopause” in New York City this October, said she’d been scared she “was losing [her] mind … I was like, ‘something terrible is happening to me.’”
But the doctor offered another explanation. “She was like, ‘Hold the phone!’” Bee said. “‘How old are you? Oh honey, you’re in perimenopause.’”