--doctors think you are making stuff up? Very sad.

Certainly, any of the ANA/vasculitic/connective tissue autoimmunity conditions can cause secondary neruopathies or myopathies, either through direct attack, or compression, or vasculitic insufficiency, or all three.

Take a look at (and bring to your docs!):

http://neuromuscular.wustl.edu/antib...tml#vasculitis