Advice needed please. I have a litter of puppies who were all healthy a up in till the age of 5 6 weeks. I have about 4 that have a snorting noise that i can only describe as pig noises. I had them at the vets for their first injection and she listen to their chests and said all sounds normal but if they start to act unnormal then we can administer antibiotics. There not unwell in themselves they run around like crazy. I just dont no why this snorting has come about and why they are doing it. It seems worst after they have eaten. Any help or advice or anyone whos had the same problem ? Before i book them back in tomorrow.