Jaundice

Jennifer
I gave birth to a baby boy on 12/4. I was induced due to high blood pressure. He was 37 w 2 days gestation.  He is now 5 days old, hasn't pooped since 12/6 at 10am. (It was meconium). He just got diagnosed with jaundice and I was told to start supplementing with formula and using vitamin D supplement. He went from 8 lb 9 oz at birth to now 7 lbs 8 oz. I am so heartbroken. I have milk. But he is uninterested... He just wants to sleep. I pumped 2 oz and gave it to him. It was hard but unforced him to drink it... He threw some of it up towards the end. I am terrified for my baby. I just want him to be well!