My son is 16 really active never sick! But he has high bilirubin , here the normal levels are from 0-20 his are 36. I notice sometimes the whites of his eyes are tinged yellow. All bloodwork except the bilirubin comes back good. He also had an abdomal ultrasound and it all came back good. I don't get what could be wrong and I am panicked that I am gonna miss something and he's gonna pass away. Please give me some advice on what I should do. His last blood work and ultrasound was in November.