She had her flee and worn treatment Monday so stools have been a bit looser. We have also gradually introduced a new food into her diet mixed with her normal food as hoping to switch to Forthglade as we thought it might be better quality. Shes currently on PAH Step up to naturals which she does like and seemed fine with but there wasn't much choice and forthglade seems to be more available in our supermarket. Any way her stools have been a bit looser, yellow and she has been farting more. She's just had her bath today and she smells very fishy could this be liked to her new food?? Do I switch back to her normal one or keep going?