Cardiovascular blockage will appear chest pain, headache and dizziness, weakness of hands and feet, palpitations and panic, but there is no cardiovascular blockage of the seven signs of the said. 1. Chest pain: when laboring or when emotionally agitated, one may feel a squeezing sensation in the chest, breathlessness and chest pain, which is mostly located at the back of the sternum or the precordial area. Some patients also have indigestion. 2. Headache and dizziness: when the blood vessels in the brain are blocked and the blood supply is insufficient, the brain will be deprived of oxygen, and headache and dizziness will easily occur, and some patients may even have convulsions and coma, and the headache will be aggravated when coughing hard. 3. Weakness of hands and feet: when blood vessels are blocked, the blood supply to the limbs is insufficient, and there will be weakness and numbness of the limbs, and some patients have limb movement disorders. 4. Palpitation and panic: when myocardial ischemia can not get enough blood and oxygen supply, palpitation and panic symptoms will occur. If the above symptoms appear, you should consult the doctor in time to avoid missing the best time for treatment.