possible cows milk protein allergy??


so when my lo was born i noticed he spit up a lot and it was chunky, he was always so fussy. so the pediatrician recommended no dairy for a month and see if it helps. well after the month, he was good no spitting up a lot. so i decided to try adding dairy to my diet again and now hes spitting up chunky after every nursing session, his poop is runny, and hes really fussy. has anyones lo experienced this and it ended up being cows milk protein allergy?

how do you get pediatrician to check for sure, and how do you get them to refer a different dairy diet to WIC?