Sudden palpitations and panic with cold sweat may be possible for the following diseases: 1, hypotension, hypotension often occurs in people who are weak, dizziness and cold sweat can occur after standing for too long, and there may be fainting and unconsciousness; 2, hypoglycemia, some people do not eat for a long time, it can occur in hypoglycemia, people with diabetes when oral hypoglycemic drugs or insulin injection overdose, or when using hypoglycemic drugs without eating, can occur in hypoglycemia, the patient can appear dizziness, sweating, panic and weakness of the limbs; 3, other causes of vertigo. Or the use of hypoglycemic drugs without eating, will be the occurrence of hypoglycemia, the patient can appear dizziness, sweating, panic and weakness of the limbs; 3, other causes of vertigo, can also be cold sweat; 4, heart disease or arrhythmia can also be caused; 5, some patients are nervous, poor rest, when drinking too much coffee and strong tea, or patients with anemia can also be Therefore, it is best to check the electrocardiogram and test the blood sugar to see if there are any abnormalities, and then go for treatment after a clear diagnosis.