About 12 years ago, I was asked to do a domicillary visit to see a 10 year old girl who in the spring had taken her secondary school entrance examination; caught a heavy cold with a persistent sore throat, which was taking a long time to clear; had a perpetual headache; dizziness on standing; extreme tiredness, which became worse if she tried to do anything; paraesthesia of the hands and feet intermittently; and disturbed sleep. Her general practitioner suggested postural hypotension, but I could find little abnormal except for some unsteadiness when she tried to walk. Routine haematological and biochemical tests were normal, as was computed tomography of her head. The physiotherapist that I referred her to reported that their attempts to mobilise her were actually making her worse, and wondered if she had a neuromuscular disease.
You can read the rest of this article here: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1717724/pdf/v079p00375.pdf
Source: Franklin A. How I manage chronic fatigue syndrome. Arch Dis Child. 1998 Oct;79(4):375-8. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1717724/pdf/v079p00375.pdf (Full article)