Sick Yorkie

This Christmas, we got Toby some nice pork bones for his stocking. We treated one to him yesterday and I woke up to quite a mess in the crate. He actually lost control of his bladder twice yesterday too. This morning, he had gone #2 in his crate, eaten it and then vomited twice. The vomit had soft pieces of the bone in it which leads me to believe that it was the pork bone that did this to him. He proceeded to throw up two more times (luckily outside). If anyone has any other ideas what this may be, please contact me josiejnk@msn.com. He feels fine otherwise so I am debating weather or not to take him to the vet.