8 days old BF baby throwing up yellow flemmy sick …

Cerys • 29 | UK Insta - @cerysrihanna Mama of 3 boys 🤍

Apologies in advance for photo

My baby’s 8 days old and solely breastfeeding - he’s only been this sick twice on separate days but read so many different things online and was wondering if anyone has had similar or knows if this is normal for a baby - he seems fine when he is sick and no temp or anything. Just little worried incase! Thank you x