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

### input:
my 20 week old son - corrected age is 15 weeks , born via emergency c sec i had major previa and haemmoraged and he was born not breathing , with fluid on his lungs nd was revived then ventilated and remained in scbu for 2 weeks - he has a virus 2 weeks after getting his first immunisations but i am concerned about his face being grey around his mouth eyes and nose, chest is clear he has a mild rash and is vomiting. i often thought the grey areas were wind but the eyes and nose shouldnt be so grey should they !? he sometimes wakes up gasping because he has missed a few breaths in his sleep ( apnea ? ) should i be concernedthat his oxygen levels are low? he was also born with blood level of 8.9 but turned out to not need a transfusion, his levels dropped to 8.6 at 4 weeks old but they ave not followed it up since. he does ave folic acid, sodium feredate andd dalivit daily so i presume these help maintain his levels. sorry if this is hit n miss info, so many points to make to try to get a more accurate diagnosis. eoh and he is still feeding and soiling nappies well sincere regards sincere regards

### output:

Hi, Welcome to Chat Doctor. I have read your question in detail and I know that you are very concerned about your child. Mild rash and vomiting is normal in a 15-week child, for this you have to do burping more. All babies vomit a little milk after feed, this is a normal thing. Greying of face around mouth, eyes and nose with few apnea episodes is a matter of concern. It could be due to congenital heart disease or hypoxia. I think an echocardiography should be done to rule out congenital heart disease. Also, a complete bold count should be done to know the exact hemoglobin levels. It will guide us that whether we should continue hepatitis or not. I hope this will help you. Take care.