If you wake up with chest pain, it may be due to the following reasons: 1. It may be due to incorrect posture when sleeping, such as sleeping on your stomach to compress your chest, which leads to prolonged pressure and ischemia of the soft tissues in the chest, and generally the symptoms can be relieved soon after getting up in the morning. 2. Arthritis, pain appears when breathing deeply or when the thorax is active. 3, it may be a problem of the heart, commonly angina pectoris or myocardial infarction. In addition to localized chest pain, these two diseases are accompanied by chest tightness and palpitations. Some patients may also experience dizziness, cold sweats, and in severe cases, transient syncope.