Sore neck on the right side limiting mobility. Pain had been on and off for 2 years. Sometimes it is so sever I cannot lift my head straight up or turn it to he right. When that happens I rest it on a neck pillow. Pain is just to the right of the spine between c2 to c4 (best guess I have). Light ach on left not sevior. Lain feels vertices and in one spot running along spine. Before pain occurs there is a great amount of tension in the neck. It is relaxed by a crack and then hurts as described.