Hi... The pain and numbness could be due to some nerve entrapment of the nerve while exiting out of the small hole of the vertebrae.. I recommend you not to neglet the symptoms atleast now..kindly fix up an appointment with a orthopaedic to rule out radiculopathy and neural irrtation..... if there is any disc prolapse involved then we need to start of treatment at the earliest for a good outcome... I suggest you to kindly Do icing in the neck and shoulder to reduce spasm in-turn reducing the symptoms.. Keep your neck supported while sleeping...with a good pillow or a rolled towel supporting the curvature of the spine .. Maintain posture while in work...so that you spend most of the time in neutral neck posture rather than bend neck as this worsens the issue... You can start isometrics for your neck extensor muscles and stretch front neck muscles by looking up and giving slight over pressure under your chin... Hope this is helpful for you.. Kindly revert back incase you need any further clarification...