I thought I was over the hot flashes, but in the past few months they've come back with a vengence. Yes, they do seem to correlate to periods of exertion, or if something stressful is going on. And, yes, they are not just a quick hot flash, but the whole blissful experience - sweating like I'd run a marathon. I'm new enough to this dx that I'm not sure if it's Lupus related. They pass, of course, so it's not the worst symptom. Just one more in the long list.
"If you trust Google more than you trust your doctor than maybe it's time to switch doctors."