milk

she should be teething. my girl use to drink alot too but around 3 month she start to drink lesser and we give her some teething tool to put in the fridge and let her bite everyday

If she is on some solid, it is normal. Or she could be teething. If she passes motion and pees as usual, nothing to worry about :)

Should be teething. My baby during this period also drop intake of milk

Maybe try to burp baby first , then continue feeding ?

If the output is the same, then I wouldn’t be too concern.