We really feel for you. I don't know what we'd do if anything happened to our dogs- and we
do have kids!
Losing a pet
is losing a member of your family, and I've lost both over the years. I can't think of anything that would lighten the terrible distress you must be in, but I'm sending a big hug anyway.
I truly doubt whether there was anything anyone could do. I don't think the kennel was fair in not contacting you the minute Syd looked poorly, but perhaps it all happened too quickly and there was just nothing you could have done. I wouldn't like to guess how your terrier is feeling, but hopefully because everything is so different anyway, she won't understand and will kinda go with the doggy flow. (Ok, I know that might sound daft, but I'm no animal psychologist, just an animal lover.)
Deb-our young german shepherd had a tumour on her spleen. We took her to the vets as she really didn't seem right and found that she (Star) had a tumour and that it had probably burst before, but to a lesser extent. This time her tummy was swollen with blood and the vet said that we had to either euthanize her or operate immediately. We chose to operate but the vet was against this as he said euthanasia was the better choice for Star. I guess again I'm saying there was nothing you could have done. It's just horrible.
My mother used to say that the only way to avoid being hurt is to never love. And what a bleak choice that would be.

Caroline.