Thing after thing 😥

So my baby had breastfeeding jaundice but i took him to the dr today and luckily it went down. I can go back to breastfeeding him. But now i was given a handout about an umbilical cord hernia. He said not to worry unless i see his belly button getting bigger or doesn't go away in a while. I'm scared i don't want my baby going through these things. Has anybody else gone through the umbilical cord hernia with their babes?