6months old twin refusing milk.

One of my 6m old twins has completely lost interest in drinking milk while awake. I exclusively pump, and when I try to bottle-feed her, she pushes the bottle away or hits it. The only time she drinks is during dream feeds and she finishes the whole bottle, so I know she’s hungry. This has been going on for a month now and is getting worse. She used to actively demand milk, but now she refuses it when awake. She's still alert and active, not lethargic, but just not interested in feeding. Earlier, I managed by giving her bottles while she slept, but now even her sleep is getting disturbed so I'm running out of options. She's not making up for it with solids either; some days she eats, some days she doesn’t, depending on her mood. Has anyone experienced something similar? How did you handle it? Any tips to make sure she still gets enough nutrition?