It's a little cold. After drinking two mouthfuls of warm water, I suddenly became flustered and short of breath, and my heart beat faster. What is the reason?

Consider tenderness in the precordial region caused by coronary heart disease, angina pectoris, fatigue and tension, or arrhythmia, tachycardia and bradycardia. Need to do ECG examination, heart auscultation, heart color ultrasound examination, avoid fatigue, pay attention to rest, light diet, avoid greasy. Specific illness, specific treatment, angina pectoris can take medicine to expand the crown, inhibit platelet aggregation, promote blood circulation and remove blood stasis. Arrhythmia can be treated with antiarrhythmic drugs.