Patients who suddenly stop smoking may experience withdrawal reactions, such as dizziness, blurred vision, chest tightness, breath-holding, or even a series of problems such as false sweating, a sense of suffocation, a sense of near death, etc. They may also experience physical discomfort such as panic, palpitations, feeling uncomfortable all over, yawning, etc. They may also be accompanied by emotional irritability, such as a change in temper, easy to get angry, and no way to control their temper, because You may have trouble with your family over trivial matters. It is also possible that you may not be able to control yourself to smoke again, so it is best not to stop smoking suddenly, but to quit smoking systematically. This is safer, otherwise once the withdrawal syndrome occurs, it may cause physical discomfort and emotional irritability and other problems, which are more difficult to deal with.