2 months old baby with jaundice , Totl Billurubin was 6.4 mg/dl , now 3.8 , conjugated billurubin was 1.5 mg/dl and now 1.8 mg /dl , unconjugated billurubin was 4.4 and now 2 mg/dl , stool normal colour , breast feeding + bottle feeding and clinically sclera and skin becoming normal , Please advise regarding further investigations and follow up