My DD is 4 weeks (born at 38 weeks at a healthy weight). She is suddenly suffering from lots of trapped wind and I’ve struggled to get her to burp. Vomiting what I would guess are full feeds a couple of times a day, as well as small amounts of spitting up. Twisting and arching her back when I put her down. She has 12+ poos a day, yellow and shiny. I have been on antibiotics for mastitis.
She is bf with one ff a day. She has feed so much over the last 24 hours that my nipples are really sore - 3h 25 mins since midnight. Her older sister has CMPA which was not diagnosed until 11 months although she was medicated for reflux.
How do I know if she has reflux, CMPA or is just a normal baby? Thanks