I know what you're saying and I agree to an extent. However, it's no different than your own child I would imagine. You likely don't take your child to the doctor for a diagnoses every time they throw up. Sometimes it's quite clear that a child threw up from crying too hard, gagging on food etc. However, two times throwing up is likely an illness related diagnoses. Most times vomit at dc is an instant go home for me but with a hard cry before hand I can see why the OP might have thought it wasn't illness related