So is it considered a physical condition or a mental illness?
Neurological IME. Brain forgets that body is better from whatever virus you were ill with in the first place and keeps you in ‘survival’ mode. Or at least that’s what the ME sufferer’s groups were saying a few years ago when my brother had it (5 years of being really vacant, vague and of course tired. He’s about to get a first in engineering degree though so safe to say he’s better now…)
A bloke-friendly analogy would be that it’s a bit like that chap on here the other day with the Alfa 147 that went into ‘limp’ mode every time it went past 60 despite there being nothing wrong with the engine.
Though the Lighning Process and its great success really does challenge the purely neurological understanding. The other complicating thing is that there is a host of knock-on psychological problems that arise, particularly if you get it in your teens when you are supposed to be drinking cider and chasing girls/boys around.
And its not just ‘yuppie flu’: in my professional life i have met many ‘council house tenant’ sufferers of ME who would instead be branded as ‘benefit scroungers’. Same illness, different insults. 😆