Deiliah's piglets are 11 days old now, and I don't think the smallest one has grown at all since they were born. He did look wee to star with, but the others have doubled in size, and he now looks absolutely minute. He does seem healthy, no signs of any illness, but is not quite as lively as the others. He seems to be feeding fine, and Delilah adores him, he tends to stay closer to her more of the time than any of the others. He gives the general impression of something premature. I have a feeling he might not make it, but obviously want to do everything I can to give him every chance - any advice?