HJ! you are doing such a great job, i bet it's not easy at all!!!

I've heard if you switch from Bfeeding to Formula that it's best to do it slowly so kinda weaning them instead of going cold turkey...... can you still sometimes express? so she's still getting a bit of breast milk and then other feeds she gets formula?? if you only express once a day your milk will still be drying up but you can still get a bit out iykwim? I'd say she's getting used to formula now instead of b/milk perhaps?? do you think?
or has she got reflux/colic perhaps?
You are the BEST Mummy for Bianca...... remember that