I get a electric shock sensation down my arm when I reach outwards. What is causing this?!

Medical evaluation. This type of pain can be caused by several different things, including neck, shoulder, elbow, etc. You will need to describe the location of the pain and what causes and alleviates it, in combination with a full exam by your physician to help determine what treatment plan is needed.

Related Questions

Today I was sitting down and I felt a strong electric shock sensation on my arm, near the clavicula. The pain it caused made me scream. Causes?

Brachial Plexus. 20's fem w. sudden onset of neuropathic & radiculopathic jolt of pain in shoulder-arm represents sudden brachial plexus imingement, which might be harbinger for Thoracic Outlet Syndrome, TOS. See comments below: . . Read more...