I thought it might be helpful to newbies if we described hot flashes. I know mine have changed over time, and they can be worrysome.
My old hot flashes were simply a warm/hot feeling, and I would break a sweat, usually feeling damp on my upper lip and armpits. If I was outside, stepping into a bit of shade helped. Otherwise, I could just ignore it and it would pass. It would last perhaps a minute or two.
My next kind of flashes always came on while eating spicy foods. Everything would be fine, and suddenly I would feel something, I don't even know how to say what it was, almost a dizziness or a panic. I would often need to get up from the table and stand for a moment, and drink ice water. These pass really quick, less than a minute. It took a long time to connect it to the spicy food, because I didn't always feel the heat or sweat.
And my worst kind of hot flash begins with a feeling of uneasiness. Something's just not right. I get a little anxious, and that can last for hours, then I may have one big sweaty HOT flash, or may have smaller waves of warmth come over me, one after another. It's very uncomfortable. This certainly goes on longer than a few minutes. After it subsides, I get chills, and often times I'll cry. After my chills are gone and I dry my tears, I'm back to normal.