Tightness and pain in the chest after waking up early in the morning may be due to autonomic dysfunction, myocardial ischemia, or heart valve disease possibly. 1. Autonomic dysfunction: When autonomic dysfunction occurs, patients may experience stabbing pain in the precordial area, atypical boring pain, etc., also known as cardiovascular neurosis. 2. Myocardial ischemia: If coronary artery stenosis, or patients with vasospasm, morning is a high incidence of vasospasm, this time may be due to myocardial ischemic attack triggered by chest tightness. 3. Heart valve disease: aortic valve stenosis, especially severe stenosis, the patient may get up in the morning activities, triggering symptoms of myocardial ischemia, triggering chest tightness. It is recommended that patients with frequent episodes of chest tightness and pain should go to the hospital in time for examination and treatment to clarify their condition.