Anyone who has one of the following is likely to have cervical spondylosis often feels “no place to put the head” and has an uncomfortable feeling when the neck is placed in any position; pain in the back of the neck, which can be relieved by pulling the head and neck upward with the hand and aggravated by applying pressure downward; neck pain accompanied by weakening of the upper limbs and lower muscles and muscle pain; chest pain accompanied by radiating pain or numbness in the upper limbs (including the hands) Suddenly kneeling down when walking, or walking with a feeling of “drifting or stepping on cotton” in the legs; chest and waist and abdomen seem to be tightened by a cloth belt; when lowering the head, suddenly triggering numbness or Sudden numbness or “electric shock” when lowering the head; migraine or vertigo when closing the eyes and rotating the head and neck to the left or right; sudden involuntary dropping of objects held in the hands; “heart disease” with a normal electrocardiogram or “gastrointestinal disease” with no abnormalities on internal examination gastrointestinal disease”; dysphagia accompanied by neck pain.