I have chest tightness, shortness of breath, difficulty breathing, palpitation, cough, irregular hea

You should choose bed rest, ensure adequate sleep, adjust breathing, relax mentality, and go to the cardiology department of the regular hospital to do ECG, heart color Doppler ultrasound, blood pressure examination; if diagnosed as hypertension, should take antihypertensive drugs in time to control the development of the disease, and for the symptoms of fever, consider that it is caused by respiratory tract infection, should do a good job of body warmth measures.