A member asked:

Heart is beating fast, legs shaking, pale, no fever, what could be the cause ?

A doctor has provided 1 answer

Need more info.: Could be many things. Anxiety/panic, reaction to a allergy medication (decongestant), hyperthyroidism. Would need more info. Depends on your age, risk factors etc. Could be a cardiac dysrhythmia (such as atrial fibrillation). Not knowing anything besides those symptoms, i would advise you to get evaluated immediately. If you have a measured rapid heart rate is 120 at rest you should go to er.

Answered 11/18/2015

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