The biggest indicator that a dog's stomach has already turned is lack of blood flow. The dog's legs will get cold. Their gums will start to turn lighter pink, then white. They won't be able to swallow at all, so the amount of drool will become excessive. If untreated, these symptoms will worsen until the dog loses conciousness and eventually dies.

There is no real answer to how quickly a dog can go from bloat to complete torsion. Some dogs progress within a matter of minutes ... some a few hours.

Is there anyway your vet would work on a payment plan for her if she needs to be seen? I can tell you that our dog was at the vet's office for a total of four days after surgery. They didn't ask for any money upfront, so that gave us a few days to pull funds together. It may be worth a call just to describe the symptoms to your vet, and see what they suggest. I don't want to scare you, but it is definitely a better safe than sorry situation.

There is also a website with an accupressure point that helps to relieve pressure in the stomach. You may want to try this in the meantime as well:

http://www.iwane.org/A_P.htm

If you have any other questions, feel free to ask. I'm more than happy to help.