hi,my mother has pain in upper arm midway between shoulder and elbow on the outer side.she has developed pain after her husbands death.pain is severe in intensity not relieved by any massage or medication.pain sometimes extends below the elbow as well.pain appears as a sharp deep attack and relived after 5min.there is also limited range of movements on the opposite side and upwards.there is also decreased power and nimbness at night.we need your help in making a diagnosis.....regards