I found a just born kitten on my lawn 20 days ago, she is eatting really well, and is growing fast, my problem is that, the vet in my small town ran out of kitten formula (nurturall), I had to buy a different formula (mammalac) from a different vet, now she has very loose bowel movements about once a day, I have tried adding more water to her formula, but it doesn't seem to help.