There are many reasons for panic, shortness of breath and chest tightness the day after drinking, mainly including the toxic effects of alcohol and triggering potential heart disease, as follows: First, the toxic effects of alcohol: alcoholic injury occurs after drinking, which is very common, such as headache, dizziness, nausea, vomiting or body pain, mainly due to alcohol damage to liver cells, gastrointestinal tract, and gastrointestinal tract dysfunction. Alcohol also damages the brain, causing temporary abnormalities in the neurological function of the brain. Alcohol can also damage the heart. After drinking, the heart contraction force increases and the number of heartbeats increases. Second, it triggers potential heart disease: for example, it induces arrhythmias and induces or aggravates coronary heart disease. If the heart itself has certain underlying diseases, such as coronary heart disease, arrhythmia or abnormal heart function, after drinking alcohol, you will have panic, shortness of breath, chest tightness and these symptoms.