My baby has been arching his back and throws up legs,  also wakes up crying and coughs during feeding but hasn't been spitting up milk frequently (only very little and that too once in two days) and hasn't been crying lots but shows signs of discomfort every now and then.  I was reading up about,  the symptoms are similar to colic or reflux but he seems fine over all. He doesn't cry as much and plays as well in the evenings and looks happy. Do I need to still have a doctor check him for colic or reflux?