Deconditioning: At your age deconditioning is the most likely cause of your symptoms. Go ahead and do physical activity and if the symptoms persist, see your healthcare provider.
Answered 12/18/2014
5.2k views
Anemia: Anemia, or low hemoglobin levels, can cause the heart to beat faster and cause shortness of breath with exertion. Heart arrhythmias can also cause tachycardia. Asthma or other lung conditions arent usually associated with tachycardia.
Answered 11/28/2017
5.2k views
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