I am going through the process of diagnosis for MS. I saw a Neurologist today and he also thinks I have something wrong with my central nervous system so I have to have a C-spine MRI. What kinds of illnesses are based in the central nervous system? My body is falling apart so fast. Less than 7 months ago I worked out an hour per day in a gym. Now, I can hardly walk and am in endless pain. I am scared.

Summarized question: Does fatigue and pain indicate a central nervous system disorder?