crmak- interesting!!! I get the creepy crawlies too!! I have documented non length depended small fiber neuropathy (epidermal nerve biopsy was "significantly" abnormal").. sometimees I cant tell if its my muscles vibrating or my skin crawling - can't tell the difference!! I have heard people on here with MG talk about that sensation when they get overly weak and tired.. It worsens the more I use an extremity usually

My neuro did a test that wasnt' initially on the panel that came back a 20 (and normal is 0-20) which made them curious.. it was the acetocholine modulating antibody I believe... ..

ck, as in cpk.. which is a measure of muscle breakdown- MOST of the time people with myositis, some myopathies etc will have elevated results.. MG won't (not that I'm aware of anyhow).. if it comes back elevated then they do a muscle biopsy many times.. people with LUPUS can have polymositis, and i'm sure sjogrens also increases the risk as well..

Keep us posted on everything! Hope you get some answers.. and good answers!