There is a triangular region on the side of the neck in the scalene muscles that, when tight, can cause a range of symptoms from pain along the scapula, in the neck, in the upper chest or even in the shoulders through the arm and down to the hands.
Even more confusing is the connection of these muscles to TMJ, hoarseness or a feeling of having a lump in the throat.
Nurses, hair dressers, chefs, and people who sit at computers are all susceptible to pain caused by trigger point # 1. Neuromuscular massage can relieve the cause of the pain.