, I can not balance in complete darkness or with my eyes closed. I have concluded that my brain has learned a new way of keeping my balance which is mainly by visual input, and when visual input is removed, I will certainly fall down if I am not holding on to something. I just keep night lights on here and there in the house and I don't have any trouble getting around the house in the 'dark'.
This is indicative of CFS and also other illnesses as it's an nonsuspific (sorry im tired and my language is starting to go, i forget how to spell) sign. I think this is mentioned in the Canadian Consensus Document (for CFIDS) along with other tests they recommend for CFS.