Yes try oat milk! We drink it and L seems to like it.

L's poos always seem to be directly related to what he's eaten. We ended up taking him to get allergy testing done (mainly for his eczema though), so maybe give that a try?

I hope she isn't allergic to gluten. L is wheat intolerant (along with allergies to nuts, eggs & potatoes) and it's a real pita. Manageable, but just more effort and bloody more expensive to buy "health" foods.

Hope she feels better soon! And maybe it is something more simpler like teething?