Neck pain may be a result of thyroid disease, which is a common endocrine disorder. One of the most common clinical symptoms of subacute thyroiditis is thyroid pain, which may sometimes manifest as severe pain, usually starting on one side of the thyroid gland and quickly radiating to other parts or to the root of the ear or jaw area, often accompanied by general malaise, weakness, muscle pain, and sometimes visible fever. If you have neck pain, it is recommended that you go to the hospital in a timely manner to check thyroid ultrasound, thyroid function and, if necessary, thyroid-related antibodies for a clear diagnosis and active treatment.