Take  warm Luke water fomentation

It seems like a simple case of Trapezitis.it's just tightening of muscles due to muscular imbalance. It happens as a result of a bad posture at work / home on overuse of desktop / laptops / cellphones and  using multiple pillows while sleeping.This problem has gradually risen over the years because of this bad posture. At times you might have headaches, vertigo and shoulder pain as well Though this problem is very simple to solve, it is very irritating and tiring, physically and mentally for the person involved. Normally in my answers I suggest home remedies first but since you have a chronic problem you need to go see a physio.

Self Massage the back of neck Chiropractic adjustment will help. Take frequent Breaks at work. Core Strengthening

I want to add up my advice : as it's a chronic condition as per your say need to done a cervical x ray AP & Lat view. this pain may be due to bilateral  upper trapezius muscle spasm. Mayofacial trigger points around neck area. Rx    dry needling, UST, moist heat, myafascial release techniques (MFR). Consult a physio clinic.

A neck pain can be indicative of a lot of conditions. Most commonly it arises due to bad posture, muscle imbalances and lifestyle habits like phone/computer usage.

Hot fermentation and stretching exercise  of neck. If it work then ok otherwise visit physiotherapy centre. You can contact ADMIRE physiotherapy laser CLINIC

Use Hot water fomentation n follow office related ergonomics. Consult to the Physiotherapist.