This type of pain in this location is typically due to a trigger point in the mid or upper trapezius or one of the deeper rhomboid muscles. This is a bundle of muscle fibers that has gone into spasm.
Ok makes sense. What can I do to relieve this
It can hard to get at a trigger point, but they do relax on their own with time. In the meantime, heat, motrin (600-800mg for an adult), and deep tissue massage or acupressure can be helpful
Thank you very much just finished with a massage. Feel a bit better. Will definitely follow your other recommendations.