Don't stress.

Keep offing milk, in whatever way shape or form she'll take it - normal, warmed, cup, sippy cup, bottle, icy pole.

And keep offering food - at one point, DS1 basically refused eveything other than grapes and weetbix, but once whatever was going on had run its course (teeth moving around, a mild virus, 4 day long tantrum, whatever...) he went back to normal.

The only down side was that there was a fair bit of wasted food ... but to keep his eating on track over all, we were ok with that.

All will be well