So my little one started to projectile vomit. He only did it once a day but it’s happened three days now. He will cough and then proceed to vomit. It smells like sour milk every time. I started to take a supplement to help my milk supply. I don’t know if my milk has changed and it’s upsetting his stomach or if he’s not feeling well. Has this happened to anyone else? I have a doctors appointment on the 10th.