Before doing anything else, I strongly recommend that you make an appt with a massage therapist skilled in neuromuscular therapy (most MTs are, in the US).

The odds are in your favor: the symptoms you described are almost always caused, not by spinal problems, but by trigger points in muscles of the neck or chest muscles. First, a short description of trigger points. TrPs are painful knots in taut bands of muscle that cause the entire muscle to become hypertense and compress its underlying nerve(s)-- in the case of TOS, the brachial plexus nerves that serve the hand, shoulder, and arm. The three scalene muscles of the lateral neck, when overly tense, compress the brachial plexus which passes beneath them, then goes lateral for a couple of inches before crossing beneath the pectorals in the chest and on down the arm.

Since you said you feel pain down the neck, hypertonicity in the scalenes are likely the cause.

Now, I certainly can't diagnose. But if I am correct and trigger points are at fault, a session with a massage therapist will save you thousands of dollars in medical bills and negate the need for surgery. If I'm wrong, and it is something more serious such as problems within the vertebra, the massage therapy session won't do you any harm (and will feel really good).