Entrapment neuropathy (neuralgia, neuritis, pinched or trapped nerve) is caused by physical compression or irritation of major nerve trunks and peripheral nerves, producing distant
nerve pain symptoms. Certain sites
in the body are more likely to produce
nerve entrapment because of anatomical vulnerability".Reference:http://www.painclinic.org/nervepain-entrapmentneuropathy.htm
These sites include neck,shoulder,elbow and wrist.You may have either supraspinatus neuritis or ulnar neuritis.