Been ebf my 5mth DD. Going back to work in 2 wks (eek)..plan to combine her feeding - formula during day & bm in evening .I tested ready made formula tonight to.see how she reacts cus my other 2 dc had cows milk allergy so wanted to.check before buying a full tin of formula. Normal reaction for allergy is rash all over. She didnt develop any redness or rashes but an hour later she vomited her milk out - what does that mean ? Is is the formula(sma) itself didnt agree with her ? Anybody experienced this ?