To start off, my dog is ok...
Yesterday, PA temps were high 80s with no breeze and more humid than usual.
Got home around 5, fed the dogs and the wife and I ran a few errands, returned home around 8. I always train before feeding but didn't as I was going to give us a night off. When we got home, the yard was shaded and it was considerably cooler.
Decided to do a quick wagon wheel, here-heel with me on the bucket, placed 8 bumpers. It was slow paced as I was working on him spinning with me. This drill lasted about 10 minutes (estimate) and at the end I "released" him to pick up a freebie which was laying off the the side, he walked to me and started heaving, and threw up 3 pieces of food, and then heaved again with nothing coming up. He laid in the cool grass and was panting, didn't seem too excessive but I noticed him gums were lighter than normal.
We headed in the house which he walked perfectly at heel (not typical), head down and just seemed loopy. In the house I put them on the cold tile floor and he laid there panting, he would pant 5-8 breaths, then take a deep/struggling breath which I have never heard before...
Gums were very pale, the breathing continued a couple minutes, and he wouldn't look up or lift his head at all. Wife ran out and started the truck with AC on high. With Huck laying on his side, I noticed his tail pointing out and he started going to the bathroom on the floor like he didn't know he was doing it (has never done that, even as a puppy).
I knew something was seriously wrong, scooped him up and stood him up outside to finish, which he did go quite a bit and walked back to me but seemed off/wobbly/loopy. In the truck to the vet. At the vets office within 60 minutes of this starting.
His symptoms improved the whole way, temp was 104, color on his gums had returned, and he was much more aware.
X-ray revealed no torsion and no obstructions, just a little gas...
For a dog who trains 4-5 days a week... It seems odd to me that a short/slow paced wagon wheel would cause this. Either way, be very careful with your pups out there.
It was very fast and very scary.