My DD is nearly 5 months and has been bottle fed formula for the past 3 months with no problems. Her weight gain has been good. But in the past few weeks, and this week especially she has almost completely refused to eat. She just chews the bottle or spits it out with her tongue. It can take me about 3 hours to get anything down her. She is looking thinner and I am taking her to be weighed tomorrow but just wondered if anyone had any insights or tips before then?