Why palpitations, chest tightness, heart tingling?

The symptoms

include chest pain,

chest tightness, palpitation,

dyspnea, etc.

Acute

myocardial

infarction is caused by coronary artery stenosis and obstruction

. The

symptoms include

chest pain, palpitation, palpitation, dyspnea, etc. Myocarditis

is caused by infection, autoimmune and other reasons. Symptoms include chest pain, palpitation, fatigue, fever, etc.