Evidence of irritation or compression of nerves or blood vessels: 1st cervical vertebra Insufficient blood supply to the brain, dizziness, drowsiness, head shaking, headache, forgetfulness, lethargy; 2nd cervical vertebra Headache, dizziness, tinnitus, eye pain, blurred vision, strabismus, nasal congestion, insomnia, tachycardia; 3rd cervical vertebra Vertigo and dizziness, migraine, trigeminal neuralgia, visual impairment, loss of hearing, swallowing discomfort, atrial fibrillation; 4th cervical vertebra Pillow drop, eruption, sore throat, nausea, weak vision, bad breath; 6th cervical vertebra Thoracic pain, bradycardia, wheezing, fluctuating blood pressure, hoarseness of voice, eruption, bad breath 吐き気.弱視.両手のしびれ；頚椎5胸部痛.徐脈.喘鳴.血圧変動.声がれ.噴門.口臭；頚椎6咳喘鳴.喉痛.血圧変動.扁桃肥大；頚椎7喉痛.ぜんそく.息切れ胸つかえ.甲状腺疾患.レイノー病。