This morning my son vomit after he finish his milk and afternoon he vomit again and just now 6 pm he vomit again after his milk? I check his temperature 37.6 , what should I do? Should I bring him to see doctor?

Now he don't have fever, I think just now I take the temperature when he sleeping so not accurate and he just had milk at 8.15 pm no vomit but didn't finish left like 20ml which I do 150ml for him and he now sleeping but I keep hearing sound like got something block in his nose or there is phglem...