There are several possible reasons for the emergence of panic and weakness: 1, diabetes: if the patient has a hypoglycemic attack, there will be panic, hand trembling, weakness, mostly accompanied by hunger, the symptoms can be quickly relieved by eating; 2, arrhythmia: the patient suddenly appears tachycardia, premature ventricular beats, atrial fibrillation, etc. can also appear panic and weakness; 3, hypotension: hypotension caused by insufficient perfusion of the heart and brain may also appear; 4, hypokalemia: the patient’s nausea, vomiting or poor feeding or the use of diuretics can lead to a decrease in potassium. Hypokalemia: Patients with nausea, vomiting or poor diet, or after the use of diuretics can lead to a decrease in blood potassium, which may also lead to panic and weakness; 5, anemia, thyroid function disease: the above-mentioned performance may also occur. It is best to perform dynamic electrocardiogram, thyroid function, serum electrolytes, blood routine and other examinations for initial screening, to clarify the cause as soon as possible, and to carry out systematic treatment.