>So it's never wrong to try a pacing approach to see if it helps.

How many people who've had chronic fatigue or post-exertion malaise for a few years do you think haven't tried pacing?

I'm sure some have not tried it, but my guess is that it occurs to most as a pretty obvious thing to try even without a health-care provider's or information source's suggesting it.

Even if a person's first response to chronic fatigue is to try to power through it and work even harder, after a few months of that strategy's not working, most people it seems to me will try taking it as easy as practical for a while.