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Heart beats too fast all the time, skips a beat sometime. Why ?

I feel like my heart beats too fast all the time. its usually around 85 bpm but when I do any sort of physical activity; even just walking across a parking lot, or going up steep stairs, my heart shoots up to around 130-140. I m a 15 year old girl and I m generally pretty fit. I have mono too so I m not sure if this could be a symptom of that? I feel like it might even be anxiety because I get so paranoid about it.... I ve also felt like my heart was skipping a beat a few times, which is just really scary. This has usually happened after its been beating pretty fast for a while. If anyone else has had this same problem please help me out! its really starting to scare me...
Asked On : Wed, 19 Dec 2012
Answers:  1 Views:  75
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Cardiologist 's  Response
Hi there,
Thanks for writing in. I am a qualified and certified cardiologist and I read your mail with diligence.
Normal heart rate varies between 60 to 90 therefore 85 falls within normal limit. Rate is supposed go up while doing any exertion like climbing stairs so that is also not abnormal. Do one thing, ask one of your parent to feel your pulse rate while you are asleep if it is between 50-75 that means there is nothing wrong with your heart rate or its rise. As far as skipping a beat is concerned. See, our heart beats for about 100,000 times a day (72x60x24) so 1% beats to be out of rhythm that include missed beats is perfectly normal occurrence. It is just that some people are more perceptive or more sensitive about it. If you still are not satisfied please ask your doctor, you will be thoroughly examined and if needed investigated accordingly. For present I do not recommend any treatment. Good Luck.
With Best Wishes

Dr Anil Grover
Answered: Fri, 21 Dec 2012
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