@178anatomy: IF RAISING YOUR ARM CHANGES THE TINGLING IN YOUR HAND, LOOK AT THE WHOLE NERVE PATHWAY. The brachial plexus travels from the neck through several anatomical spaces before reaching the arm and hand. Shoulder position can change the mechanical environment around this pathway, but symptoms alone cannot diagnose thoracic outlet syndrome. #ThoracicOutlet #BrachialPlexus #HandNumbness #PhysicalTherapy #NervePain