I Have A 4 Day Old Boy Weights 7 Lb

I have a 4 day old boy weights 7 lb 10oz 20” long heart rate 118 o2 99-100. Eats 30ml plus each month feeding every 3 hours. Stool is mustardy and seedy. Mother kangaroo cared during birth. No issues since. Baby had a small small skin tag at birth on right ear. Avgar score 9/10. Mother took a few oxycodone 20mg during early part of pregnancy for an abcess tooth. She has been clean the remainder of her pregnancy like 6 months of it. Still clean today. Would the facility tell you at time of stay for 3 days in the hospital pre labor during and after delivery if baby experiencing signs of withdrawal. He cry’s a lot at night time unless he’s picked up and soothed is he ok. His bilirubin score was 9.1 no fever. Is something wrong or is it normal. The woman was upset before birth afraid she was gonna Loose her children and the new born and worried after birth if she was gonna get to take him home and she did and he’s suppository healthy. Baby had a kidney ultrasound to check for kidney issues because of skin tag. What is your advice to sooth the mother and ease the crying for the newborn. Mother was worried and took to pediatrician today and it was nothing but goIf report follow up in 7’days. Any advice.