Very often when a person is sick, be it with a head cold, the flu, or even just a severe headache, they might begin to notice that their motor skills are a little askew. Perhaps the find themselves bumping into things; having trouble pouring a cup of coffee, or might even notice that their handwriting is a bit off. While these particular signs can certainly be attributed to a multitude of other causes; it is possible for them to be caused by something a bit more serious.
When our brain, and more specifically its neurons, are impaired or destroyed, it is important to note that we have only a finite amount that controls all of the bodily functions. So when they are destroyed, certain actions become impaired. Knowing as we do that this is a progressive disease, in its early onset, clumsiness is usually present, but can easily be overlooked or attributed to other causes.