Vomiting

Ti

My little one will be 4 weeks on Tuesday he is breastfed but he keeps throwing up after each feed and he throws up he still wants more milk. The pediatrician put him on acid reflux medicine last week and he feeds anywhere from 2-4 hours just depends on him could it be something that I am eating that’s causing him to throw up or is this normal I will probably make another appointment with his pediatrician this week