Dis is postural effect on neck muscles and u can get rid of pain through following exercises....just check facebook page : vphysiomend.sportsphysio

you have something called upper cross syndrome,  probably coz of sitting in awkward position i.e poked chin posture, and hunged back, neck muscles go for weakness, n tightness of chest muscles. first you should see an orthopedician and rule out disc bulge. protrusion,  then see a physiotherapist,  take UST/IFT,  trigger point release,  stretching exercises following neck isometric and strengthening exercises... you'll be fine.....also get your vitamin D checked