Hi sir, since you have the pain only in the last 6 months it might be concerned with you daily lifestyle activities. Analyse your activities in the last 6 months, like if you started some workouts . Or riding a lot or frequently lifting weights , using mobile in a bad posture, also check your sleeping posture.. or even if you are working long hours in front of your system.
Next Steps
you might meet your physiotherapist and get analysed and he would assist you with stretches and exercises and modalities for the pain relief.
Health Tips
Neck and shoulder exercise, stretches, strengthening exercises, Drink plenty of water. If pain aggregates please visit your orthopedician.
Thanks, get well soon.