Drinking very less milk

Has she started solids? And how often is she drinking? My lo milk feed dropped significantly too after starting solids. She does not finish her milk in the morning even after sleeping for 8-9hours… Was initially very worried but PD said that some babies prefer solids and as long as she is growing well/still gaining weight, all is good. Of course I am still worried about the lack of nutrients that formula milk has so I supplement the nutrients with milk in her food. Using formula milk in pancake recipes / to mix with cereal / mix with avocado, sweet potato etc. After I drag out her milk feeds to 6hrly, she drinks the full feed now. Hope this helps! :)