I have gradually weaned my daughter from breast to bottle over the last month. She is however struggling to take more than 4oz from the bottle then she arches her back and starts screaming and refuses to take anymore. She is only taking around 24 to 26oz everyday (she weighs 13lbs at the moment so I thought she should be taking around 33oz a day). I have been to the docs and he gave me infacol which hasn't helped and I also tried the colocynth crystals which haven't made a difference either. Any suggestions what might help her take a bit more??