The symptoms that you are telling is suggestive of cervical disc problems, it might range from mild problems to sever problems.
It is commonly caused due to increased weight, low calcium diet, inadequate calcium supplementation. It is common in persons involving moderate physical activity such as sitting in a shop for hours.
Adviced to under go simple x ray
of neck, it will reveal a lot of things.
Adviced to start vitamin b12
and vitamin d3