my baby is 4 month n 1 week old. she's never hungry. never demands milk even if not fed for 10 hrs. entire day i have to forceful fed herevery 3 hrs or so n just takes 90 ml in afeed. also no feed for 8 hrs in night. I'm feeding her formula since my breastmilk depleted after 3 months. her weight is also 10th centile. currently 5.5 kg. birth weight was 3 kg. she has this feeding issue since birth. is it nirmal behavior?? what do i do?