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Heart Palpitations

Hi my name is Josh I am 16 and for the past 6 days i have experienced palpitations, I've felt my pulse and its not irregular, well not that i have found but it is more of a fast pounding sensation or rather just a pounding sensation. Its happening at rest and I'm scared.I have measured bpm, 77- 90 i have had a couple of episodes of 100+. I am fairly fit person i regularly go to the gym and i do eat healthy majority of the time. I have been to the doctor about it and when i was there he checked blood pressure, pulse and listened with a stethoscope amongst other things. He said that I was normal but my episodes dont last long, by the time im at the doctors or where ever, it has most likely subsided. I am not sure what is going on , whether it is anxiety, whether there is something wrong with my heart ? or its just a phase and I'm okay . The Palpitations occur suddenly and go away.

Other Symptoms include occasional shortness of breath, I can breathe fine lying down but i can feel the palpitations, Ive had ingestion,  I also wonder could cold weather have anything to do with heart rate?, I have coughed up quite a bit of phlegm and have had some aches but they last 10 -20 seconds (Have had previous Costochondritis)

Would appreciate some help ?
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Avatar universal
Thank you so much it is a big relief to here that i shouldn't be to worried about these fluctuations in my heart rate. I will try and figure out what external factor is causing this but my indigestion could be it, i have had for a while though (on and off) so why would it be affecting me now ? I will purchase one just to be safe and no he did not get a blood test for my thyroid gland, he checked it with a stethoscope but nothing more. I was told to keep a diary of when the palpitations have happened and what you were doing at the time so if it persists after another week to go back !  
Helpful - 0
1807132 tn?1318743597
The rate you are having though is not a dangerous one but since you seem to indicate that this seems unusual and is distinctively different than normal then it means there could be some factor affecting your hear rate.  Though it could also be just that the fluctuations in rate aren't so much the issue but just that you are noticing them because again the rate you are having is within normal range of 60-100.  So it could just be because of some indigestion you are feeling the heart beat which is bringing an awareness of it as opposed to the rate being anything to be concerned about. If there is an actual issue odds are it is likely something from outside the heart causing it to elevate. If your heart is truly only getting to around 100 then it may be something as simple as acid reflux or indigestion irritating the vagus nerve which then in turn causes the heart to act up.  If you eat super heavy meals this will elevate the heart rate. Meals high in carbs or sugar can cause it as well.   It could also be dehydration if you don't drink a lot of water or take in large amounts of sodium or caffeine.  Energy and sports drinks could be part of the problem.  I would say try some antacids and see if it helps as well avoid any drinks that may be contributing to the issue.  You can also try and get one of them sports watches to check what your pulse is really doing to know for sure how fast it is going.  If it is going so fast it won't register then you need to go back and see the doctor but if it is only getting to around 100 or so then it is likely some sort of external cause may be to blame.  Did the doctor do a blood test to check your thyroid?  If it persists I would definitely ask that your thyroid levels be checked.  Other than that try to not stress too much as that will actually make the situation worse.  Keep an eye on things and make sure you inform your parents and doctor if things persist or get worse.  Take care.
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