Chloe has had this problem today - already 4 dirty nappies - each one progessively runnier than the previous. She doesn't seem upset by it - she is teething but these are different than the 'teething poos' she had before. She hasn't been wanting bottles for a while but will eat solids well. I've tried to get fluids into her with a sippy cup but she's not into that either!! Should I be worried?

Plus 2 questions:
*Any ideas as to how to get more fluids into her
*what 'binding' foods can a give an 8th month old who can only handle pureed food (other than the usual rice cereal)?