If an 18 month old toddler has been vomiting every 4-6 hours, would breastmilk or water be the best thing for her/least likely to irritate her stomach? She still feeds quite often anyway and was taking a lot of bm between pukes, and then was sick after (but not immediately after) some but not all feeds. She is happy and chirpy when not actually vomiting and doesn't have a temperature.
Cheers