@ A.B. - much appreciate your comments - there seems to be confusion in definitions/being used variously and at the moment loosely (stress) - some confusion of levels to bring metaphysics into the picture. The "world" of the psychos has been so much misused by some in the past (still is) - little wonder real science has to replace.....biology. Did the Greeks know their biology Hip. And I must say the word "psycho" used in this illness needs correction. Psychiatric Neuroscience - strange - my brother - Prof Neurology and ME sufferer knows nothing to do with it. He in a family of Docs had to bring their medical understanding together to treat pathogens and pathologies. Ah want to know their findings - collapse of the immune system (maybe genetic weakness involved), expression of latent viruses during this period. That holds the key. This involves cognitive problems ONLY. The affect of (whatever - viral or otherwise) well known.