<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello,I regularly have heart palpitations no common timeactivity that cause me to cough. After a cough or two my heart rhythm returns to normal. I have a low resting heart rate and have decent cardiovascular fitness I run 5k half-marathon events. Is this something to be concerned about?  <response>: Hello, Your symptoms do not seem to be anything concerning. Anyway, I would recommend performing an ambulatory 24-48 hours ECG monitoring in order to examine your heart rhythm trends for a prolonged time and exclude possible cardiac arrhythmia. Some blood lab tests are necessary too complete blood count, blood electrolytes and thyroid hormone levels for possible thyroid gland dysfunction. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor. 