Appetite suddenly dropping
I don't know what is wrong with DD1. She just won't drink enough milk. For the last two days she has struggled to get through 500 mls each day. The only feed she doesn't fight is her 3 am feed (she will take 140 mls). The other feeds she will happily take about 30 mls and then starts screaming. We struggle for another 30-40 mls before she is screaming so much we just have to stop. She arches her back and spits the bottle out and even tries to push the bottle away with her hand. We have to be really quick and shove the bottle in her mouth before sh is fully awake and she will take it. We have tried heating the formula, different teats, different positions etc but she just doesn't want it. The moment we take the bottle out of her mouth she is calm again. I know it isn't her mouth though because she happily takes her dummy. She still has plenty of wet and dirty nappies.
Any ideas?