Mummy you may want to stop the Magnolia oat drink and see whether it is the cause for your diarrhea. Normally is have diarrhea got to avoid all dairy products for awhile until recover. Meanwhile do keep yourself hydrated as you are losing water, plus breastfeeding. Drink warm drink/soup will make you feels better.
Are your baby having both BM and FM? When you BF your baby, it might due to the food or drink intake which is sensitive to baby. But it could also due to the recent change in FM.
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