Need more info : Possibly your body is not tolerating the increase in hr. May be you are dehydrated? Maybe you have an electrical heart problem causing arrhythmias; metabolic unbalance like diabetes or electrolytes unbalance like drop on potassium or magnesium. See a physician soon.
Answered 8/10/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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