Conversation: The conversation between human and AI assistant.
[|Human|] After some physical excercise I can feel my heart give a sudden thud, I think it skips a beat as I miss a beat in my pulse, it can happen a few times at once but then my pulse and heart rate go back to normal. I have had an ecg and echo cariied out and all seemed normal
[|AI|]  Hi, Increased heart rate and palpitations can have a lot of causes. It can be normal sinus tachycardia due to anxiety or stress in form of exercise. For the diagnosis, you need to do ECG at the time of palpitation and tachycardia which you have already done and is normal. After exercise our heart tend to increase because of sympathetic stimulation and comes back to normal after some time. It is a normal phenomenon. So don't worry. I hope I have answered your query. Let me know if I can assist you further.