Could my dog have injured his trachea?

Keep a close eye on him tonight. He may have damaged it and it may now be swelling. Can he eat? Drink? Swallow anything? Does his breathing seem faster than normal? Is it labored? Are his gums and tongue pink or pale? Do they have a bluish tinge? These are all signs of distress. If he is displaying more than one of those, call your vets emergency number and get him seen right away.