My dog is tacoma, a 9 1/2 year old treeing walker coonhound. We just came inside from a nightly walk, and towards the end of the walk i had to yank him away from a pile of garbage (people who litter disgust me). And now he is vomiting bile and undigested food. He was on a body harness, not a collar when i yanked him, but when he smells food he pulls hard, so it was a hard yank. What can i do to help him? Anything i should be concerned about?
Thanks for the help