Conversation: The conversation between human and AI assistant.
[|Human|] Hello, I have a history of tachycardia and ectopic beats. I have had numerous episodes so have had my heart scanned which showed normal and all ecgs have shown fast but regular beat. The reason I write to you is I am very concerned after having dived into my pool and experienced a very sudden tachycardia which lasted for 5 minutes and stopped as instantly as it started. I was unable to stand and was very short of breath during the episode. This was obviously triggered by the cold water and now I am afraid of going into the pool and wondering if I should get this checked?
[|AI|]  Chest pain and shortness of breath together with sweating very classical symptoms for abnormal heart conditions.  It sounds like when you jumped into the pool, your body went through a lot of stress due to the cold water. Therefore, it sounds like you might need a stress test in which they put your body through stress while monitoring your heart. This is one of the best tests for ischemic heart disease.  I would recommend seeing your cardiologist and letting him know about the episode in the pool. In the meantime, I would try to avoid stress.