I have a set of sisters that came to me with a URI. I gave them amox and they got better. Sister is thriving and playing, weighs 202g and Raspberry is not playful, sleeps a lot, dull and ruff fur, weighs 181g. She will come to me and look for treats and eats then fine but she acts like she don't feel well and she feels thin. She don't act like she has a URI but her energy feels off to me. I am giving her children's Pediasure 3ml a day and will be weighed daily until she starts acting better and puts on weight. My question is 3ml enough? She wont take more than the three ml a time so I was thinking twice a day?