I’m sure they would be happy to advise you and possibly check the little one over. If not BHPS may be able to give you the number of the next nearest carers. The little hog may need checking for internal parasites, etc. if nothing else. It’s always much easier talking to someone about how best to proceed.
This isn’t really my area of knowledge, but, if you can’t get any help from local carers, hopefully someone else will see this and be able to advise you further.
Good luck and Happy Christmas.