This is absolutely pain of SCM ,and levator scapulae and partially upper fiber of trapezius. ..
Plz visit to a physiotherapist ..he/she will release your involved muscles with manaul techniques or drynesdling. kinesiotaping ..and cervi4 spine mobilization exercise. ..
Next Steps
followed by release they will teach u neck muscles stretching strengthning exercises. ..
Health Tips
u eill b ok in 4-5sessuons .