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 ?