2yo DD has been crying and saying back and needing cuddles for the last two days. Its not constant but she suddenly cries, holds her back and says 'back' (she's not a good talker) Went to the docs today he suggested UTI but i took a sample back and no infection BUT she had high Ketones levels which Dr said suggests shes not eating. Does this mean she is malnourished? shes not a big eater anyway but should i be worried that shes starving?