I do not know what you mean when you sat that after feeding 'it all comes out' again. Do you mean that she vomits or does she have diarrhoea?Her weight is far below the average for her age and is of great concern.If she has diarrhoea she may have a problem digesting either milk or cereals.Stop her formula feed and replace it with Isomil2 and stop all dairy products such as the yoghurt. Do not use any milk on her porridge or milk in any form. See if she improves. Give her at least 1 week on this new diet to see if she improves. Let me know if she does not get better.
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