Talk to Pediatrician on Paediatric

My newborn 7days girl doesn't cry much. She remains placid n quiet all the time. She doesn't cry for feed. I have to wake her up after every 3 hours to feed her. She cries a little during shower n cries really less as compare to other babies. She does make eye contact n stretches n her other reflexes seem fine. Please tell me do I need to see a paediatric for assessment or is it normal? I'm too worried please help