Is there a reason it hurts between my neck and shoulders while i'm eating?

Posture: Without a history of trauma, neck and shoulder pain can be caused by poor posture, a bad disc in the spine, or an irritated nerve in the neck. Try placing a lumbar support behind your lower back when sitting to help straighten your shoulders. Sit closer to the table and avoid 'hunching' over the plate. If your pain doesn't improve in 2 weeks see your physician.