<s>[INST] My 9yr old son was experiencing slight chest pains while in class. We brought him to the emergency room and the Dr. asked about a heart murmur. He sees his pediatrician regularly and has never said anything about a murmur. We are trying to get an appointment with a Cardiologist right now to see what is going on. Should he be experiencing chest pains? The ER DR. didn t seem very concerned about it, but should we be? [/INST] Thanks for your question on Chat Doctor. I can understand your situation and problem. In my opinion, it seems nothing serious for your sons' chest pain. But better to rule out congenital heart disease as a cause for his chest pain. So consult pediatric cardiologist and get done1. ECG2. 2d photo rule out congenital heart disease. If both of the above tests are normal then no need to worry much for cardiac cause. Do don't worry much for his chest pain. But better to rule out cardiac cause. </s>