It is difficult to answer your question without a detailed interview and a physical examination.
Sometimes a simple investigation like X Ray of the neck or a more advanced investigation like MRI of the neck may be required, to arrive at a diagnosis.
Next Steps
Please meet a reputed Neurosurgeon/ Neurophysician in your area. The time and expense are well worth it.
Health Tips
It is better to go for expert advice before serious problems start. Neck pain may be a pointer of disc problems in the cervical spine.
It may also be due to poor posture or weak neck muscles which can be corrected with simple advice.