afterglow is what exactly? Is it different for a man compared to a woman ?

It depends on how physically demanding the sex is. Any perceived pain will release endorphins. Everyone gets a nice jolt of these when you have an orgasm. The bigger (or the # of) orgasms just keeps hitting the bell. It can be a true high.

The afterglow is all this wearing off after, along with coming down from the physical activity. Like the end of a good workout. It can last 10-15 minutes.

It's like you've just finished a good cardio workout that sort of feeling. But depends of the orgasm, a long worked for, teased, orgasm will give a more intense afterglow than say a quick rubbed one out.

I don't fail to get an orgasm, maybe menopause will affect that when it hits me, but if the guy isn't going to get me there I'll simply take over and show him the door 🤣🤣🤣

I, and male colleagues who've admitted it, can experience "Numb Knob" (for want of a better term). You climax, but your penis doesn't seem to have any sensation, despite ejaculating. It's not a regular occurrence, but it can happen.