Severe electric jolt down arm. Numbness. Extreme pain in neck and shoulder. Extreme exhaustion. Fatigue easily. Any ideas?

See neurologist. There are many explanations but the first one coming to mind is multiple sclerosis if these symptoms have been present for long. Consult a neurologist soon.
Numbness. It is important/essential that you have your doctor refer you to a Neurologist as soon as possible.