My son started off on breast milk and then we had to switch over slowly to mostly formula with breastmilk once a day in the evenings. He started crying whenever I fed him breast milk and refusing to drink it; however, if I switched to formula right after he started crying, he was fine and drank it. Has anyone had this happen? Could it be that he just has a preference for formula now?
Re: Baby refuses breast milk
https://kellymom.com/bf/pumpingmoms/milkstorage/lipase-expressedmilk/