This type of pain may start from cervical region and radiate towards the upper limb.. It may be associated with cervical spondylosis.. with radiculopathy towards right upper limb.. Is there any stiffness in shoulder joint. That may be due to some shoulder pathology
Next Steps
I will suggest you to start with hot fomentation, take analgesic and muscle relaxant tablet, apply analgesic ointment locally, get one x ray of cervical spine.. you can also start with physiotherapy for neck and shoulder movements.
Health Tips
Avoid heavy work, avoid jerky movements of neck..