Kitty
Senior Member (Voting Rights)
And seeing so many accounts of "I've had post-viral fatigue and this is something way more severe" leads me to think the entire CFS-ME debate is largely (there can still be various other causes leading to the same) a matter of spectrum, perhaps not triggering the mechanism that causes PEM, the distinguishing feature that should mean "rest or you are in for a world of hurt".
But is there a difference between post-viral fatigue, and post-viral syndromes?
My friend had post-viral fatigue after glandular fever/mono in her early 40s. I just checked with her and she didn't experience a whole variety of symptoms, only brain fog and feeling as if she was wearing 19th century diving gear. It was overwhelming – it sounds much worse than my ME fatigue when I'm not in an active flare-up – but uncomplicated.