i got her about 3 months ago from mcmurray hatchery and shes always been smaller than all the other chicks. shes litterally all skin and bones. shes about half the size of the rest of them and she doesnt seem to be growing, her feathers are really thin and brittle could she be a double frizzle? is that possible from a hatchery?. ive been giving her plain unflavored yogurt with cheerios and polyvisol baby vitamins but nothing seems to work, she runs around with the others and she eats like a little pig but isnt gaining any weight any ideas whats wrong with her? ohh and she doesnt have mites either =/