Hello dr.. fellow dr here.. I hv 27 days old newborn daughter.. for last 2 weeks I hv been feeding her on demand every half hourly or hourly.. her bw was 2.8 nd current weight is 2.92.. I do burping but she acts fussy nd irritated in every burping position I tried stay calms for 2 minutes hardly.. she has excessive spit up.. not curdled but pure milk.. she makes this facial expression constantly like something coming up in her throat or mouth...she feeds for 1 to 2 hrs nd still remain irritated and do rooting sucking again immediately.. she also coughs sometimes.. she sleeps hardly half hrs in between feeds nd wakeup irritated.. are these reflux symptoms?? Please guide me