I have been experiencing what I think are hot flashes. I am only 42 years old. I always find myself soaked in sweat, that once; I even stopped by the store and buy a shirt for change. Nights are not so bad, but whenever I am under duvet, I am supposed to feel warm, but I just wake up due to super hotness. When I took off the covers, I easily get cold. Is 42 years old enough for hot flashes? Is there any way to prevent it from recurring? Any help would be highly appreciated.