What causes limited head and neck movement?

Restricted head and neck movement is one of the symptoms of cervical spondylosis, with soreness in the head, neck, shoulders, back and arms, stiffness in the neck and neck, restricted movement and inability to fully rotate the head. So how is the symptom triggered? Inability to use a pillow due to pain on the back side of the head, and a feeling of golden hoop in the head The pain caused by the strain of the suboccipital muscles feels like intracranial pain, (feeling of heat in the skull or unreal consciousness, feeling like dreaming when something is actually happening, and sometimes feeling like you are in a trance.) Extends from the back of the head to the eyes and forehead. And it may manifest as a tightening sensation. Strain of the suboccipital muscle group does not usually cause neck pain, but plays an important role in the onset of neck stiffness. The upper three suboccipital muscles on each side control head nodding and head tilting, and if injury or strain affects the normal function of these muscles, these movements are inhibited. The lowest located suboccipital muscle is the inferior oblique head muscle, which is attached to the cardinal and atlantoaxial vertebrae, and they are the primary sites of head rotation. Injury or strain to this small muscle limits rotation and causes severe pain at the highest point on one side of the neck when you struggle to turn your head.