Hi Deb .... just a few notes to hopefully help!

ALL kittens need to be dewormed, and hopefully this will help your baby Fuzzball gain some weight. Also, be sure they are flea-free ... sometimes especially on long hairs, you don't even realize they have them. You can use a teeny tiny drop of Advantage on her, or better yet, bathe her in the regular Dawn liquid detergent. (It kills fleas) She might be lethargic from being anemic. Last and hopefully not the case, have any of them been tested for Felv and FIV? I am doubting this since they just came from your Humane Society, most are low budget and can't provide all of the normal kitten maintenance ... you are extremely lucky that they provided the Clavamox!

Good luck, and prayers for that gorgeous Tortie!

Kim