hi. my heart tends to speed up a lot for no reason. i just measured it and it was 115 bpm. im fairy healthy, i run a lot and my normal resting rate is around 60-63. i have no idea what causes this. im sitting down and suddenly i feel the pulsing all over my chest.
Thanks for your question on Chat Doctor. I can understand your concern. In my opinion, you should immediately consult cardiologist. Sudden rise in heart beat even at rest is commonly seen in cardiac rhythm disturbances (arrhythmia). And these can be life-threatening if not diagnosed early and treated promptly. So better to consult cardiologist and get done 1. ECG 2. 2d echo 3. Holder monitoring (24 hour continuous monitoring of ECG). You may need anti arrhythmia Chat Doctor.  Hope I have solved your query. Wish you good health. Thanks.