Breast feeding & bottle feeding

Breanna • I'm 26 years old & I'm a mother to 5 year old son named Joseph aka Jojo. So far this pregnancy sucks!!!
I breast feed my baby but when i took her to her newborn check the pediatrician said she had jaundice but it's not bad so I have to give her some formula sometimes also her poop looks like chocolate syrup which concerns me. She's only 5 days old & I'm just a nervous wreck!!!