Hello aquarius,
Motor neuropathy in ones hands according to different sources can be caused by a weakened immune system. The medical field, in my view, due to the suppression of information over the decades, has no clue or at least won't allow people to really know just how to improve the human immune system.
There are organizations out there that are bringing forth good and worthwhile information to restore the immune system to optimum levels. One such organization is the healthfreedomusa.org website. Open your mind to an alternative solution... Love and Light... Gravyee