Are you sure the arm,hand ,neck pain is from fibro?
Could it be a version of repetitive motion, or possibly head /shoulders forward posture?
Thoracic outlet syndrome (TOS) or a version of it can share some crossover sx with fibro.
http://neurotalk.psychcentral.com/thread84.html
Or might be some trigger points instead of tender points...
http://neurotalk.psychcentral.com/thread125577.html