i've got little babies about a week old and the smallest one seems very weak. she doesn't really get up or walk at all. she does swim in the bath, but usually just in one spot and if i put my hand in, she comes and sits on it to rest. she barely even opens her eyes. she can peep, if i'm holding her and she hears her siblings she responds. she had a bath hours ago and i just used the blow dryer on her because she was still soaked, she'd hardly even attempted to dry herself. she eats and drinks, but usually the others trample her. is she sick?? is there something i can do for her?? i'm giving them away tomorrow, unfortunately, so is there something i should tell the new owner to do for her??