Pain radiating into one or both of your arms and or hands is a condition described as Brachial Neuritis.
There can be neck pain as well. It may radiate into your arm or all the way to the fingers. And it has been mistaken for a heart attack when the pain happens on the left side. A trip to the ER shows the pain to simply be a nerve impingement as the result of pressure on the nerves in the base of the neck.
As with Sciatica symptoms can be relieved quickly with chiropractic care. People at high risk of this condition include those that use their phone and computer a lot. Hairdressers and waiters are also at risk because of the strain their jobs cause to the base of the neck.