I looked online at a calculator that said she needs more than 230 calories. So 2 cans. Expensive. She is lean 9 pds so her weight is fine. I am assuming she throws up in the morning before eating food because her tummy has been empty for 10+ hrs. So lock her in the bedroom with me and leave out some ff on my bureau so the ants dont get it or should I buy an expensive timer with dry food though I do not want to give her dry. Or are there any small packages of dry to try on her