Actually it’s normal for milk intake to decrease with solid intake:) and the weight is probably also dropping because she’s more active now. 40th centile weight is healthy:) If she’s teething, she may also find the bottle uncomfortable and prefer latching for the moment. At her age, the milk intake should be about 960ml/day (120ml/kg/day). If my daughter struggles with the bottle, then I usually just add the milk into her food since she likes the spoon a lot. Haha.