Every autumn when the weather turns cool, people are prone to catch cold because of the great difference between day and night temperatures. When catching a cold, people will recover after taking some medicine, drinking more water and having a rest, so they often don't take it seriously. But some colds are special. People will feel very painful after getting sick. Some critically ill patients may even lose their lives. This kind of "cold" is actually the early symptom of viral myocarditis.