Most of the cases of panic, shortness of breath and fast heartbeat and dizziness are emergencies and need urgent treatment. 1. Blood pressure, blood sugar and electrolyte abnormalities: In case of panic, shortness of breath and fast heartbeat and dizziness, it is recommended to immediately rest in bed and quickly call the hospital 120 to go to a regular hospital for treatment. After arriving at the hospital, quickly measure blood pressure, blood sugar and electrolytes to see if there is particularly high blood pressure or hypoglycemia, electrolyte disorders, etc. If the above-mentioned diseases occur, the symptoms can be quickly relieved after giving the appropriate medication. Diabetic patients often have some candy bars and chocolates on hand is also an emergency solution to relieve hypoglycemia on their own. 2, cardiovascular disease: in the hospital emergency room, also perform electrocardiogram testing, cardiac ultrasound and 24-hour ambulatory electrocardiogram testing, to see if there is paroxysmal atrial fibrillation and paroxysmal supraventricular tachycardia. These cardiac diseases can cause cerebral insufficiency, which can lead to dizziness. If necessary, perform coronary angiography to look for coronary stenosis and to further rule out precursors of myocardial infarction. If necessary, cranial CT or MRI or transcranial Doppler examination will be performed to check for cerebrovascular lesions, and corresponding treatment will be given according to the examination results. In conclusion, the most common causes of shortness of breath and rapid heartbeat include blood pressure, blood sugar and electrolyte abnormalities as well as cardiovascular and cerebrovascular diseases, so you need to seek medical attention as quickly as possible to identify the cause for proper treatment.