That could be part of it. Thanks for mentioning that. I wonder too if it
could also be the formula maybe not so much diluted bu just the idea that
it's mixed with the table foods since formula is harder to digest than
breast milk(which is why formula fed babies are more prone to being colicky)
and being mixed with other things on top of it. Someone else said this
particular type of formula is not dairy free, so it could be curdling while
mixed with the other food which could cause an upset stomach. It could also
be since it's only in the evening she's getting sick that it's building up
throughout the day, being as it is harder to digest than mother's milk and
at the end of the day finally just lets loose irregrdless of whether or not
there are solids involved. Any of these and what you mentioned could be a
possibility, but it's good to think of all possibilities so it can be
researched. Sue