My oldest son for the first 6 months of his life spit up all the time. I was constantly changing his clothes and putting bibs on him. At 6 months old it just stopped, he gained weight and grew just fine. With my second son who is 3 months old, he's a chunky little guy but every time I feed him he spits up to where it goes shooting across the room. I just figured it was normal, he spits up all the time like my older son. But everyone tells me it's acid relux, and everyone's babies seem to have acid reflux and now I am thinking maybe doctors are over diagnosing them. Isn't it normal for babies to spit up? Out of all my friends I only have 2 that don't have babies with acid reflux.