Sometimes it is observed that the baby vomits immediately after eating. There is nothing to worry about, it is a very normal phenomenon. This tendency is usually seen if the baby is forced fed. The baby should be fed slowly and after feeding do not lay the baby down immediately. It is important to let the baby sit for 20-30 minutes after feeding.
On the other hand, if it occurs after each meal and if it is accompanied by cough and breathing difficulties, then you should immediately consult with your doctor.