### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi my son is nearly 12 and was admitted into the Children s hospital with severe pain over the appendix area and slight pain in the central area of his chest. Eventually after 5 days they scanned him and saw his appendix was slightly inflamed and he ended up have it removed. He was discharged 4 days later still in pain. (he has a high pain threshold and is not a moaner ). we are now nearly 3 weeks post op and his pain is now in a band shape across the lower abdomen but is still very very painful when he moves. He is ok when still. However in the last two days he has increasingly complained of sharp pain initially around his heart but now feels like the pain is back in the middle of his breast bone... He is going to hospital for a scan tomorrow but doctors seem baffled and we are not getting any closer to sorting out why my son has this pain. he has had it a very long time now. He has also been having more flem than usual which has a slight brown tint to it?? any ideas?? thanks sarah

### output:

DearWelcome to ChatDoctorWe understand your concerns went through your details. Pain at the center of the chest or any area around the chest, shoulder, neck etc. can also be caused by extreme stress and anxiety. The current happenings explain it a lot. Your son is anxious and worried about the surgery that took place and is disappointed and anxious. Therefore, the doctors who are scanning him should have the same opinion. Let us wait and see. Let the doctors do the diagnosis part. In the meantime, motivate your son with what I told here. If you still need my assistance in this regard, please use this link. http://goo.gl/aYW2pR. Please remember to describe the whole problem with full detail. Hope this answers your query. Available for further clarifications. Good luck.