"The earliest known usage of "sick as a dog'' dates back to 1705. It has been suggested that the phrase originated from the fact that dogs, being domesticated, are the most common animal we've seen vomiting besides ourselves." The Feeding Frenzy Blog Spot on AnswersYahoo.com.
Sick as a dog?
The fact that dogs will eat just about anything that smells good or bad, seems to have fixed this phrase in American English. Yes, American English, born from British English, authors wanted and managed distinctly difference in usage, spelling, slang and popular phrases.
"British English has sometimes employed similar phrases involving other animals - "sick as a horse'' and, yes, "sick as a cat'' - but "sick as a dog'' is the only choice in American English." The Feeding Frenzy Blog Spot
We have had a sick dog. Sydney lost his normal obsessive love of all food, canine and human.
Our dog was one sick puppy.
How do you know when to take your dog to a veterinarian?
When to take your dog to a veterinarian
Five Tips or Rules of Thumb for Pet Vet Trips
- Radical change in normal eating and drinking , lasting longer than a day.
- Changes in how often your dog urinates and/or bowel movements.
- Bloody stool.
- Behavioral changes in pain tolerance, balance or sudden unexplained aggression.
- Lack of interest in sniffing and smelling, going outside or talking a walk, lasting more that a day or two.
He met four of my five rules of thumb. We took Sydney to our Vet. After a week of rest and antibiotics, he is now up to his old tricks, snarfing food, sniffing out fun and rolling in things that smell bad (to us).