Leann from Nashville those comments are spot on and not overly cautious. In fact, we have lost several German Shepherds over the years and the symptoms were spot on as if you were there. As are the preventative measures and outcomes. Anyone who does not abide by your comments/ advice or observations has not had or experienced true "bloat" or stomach turning in a dog.
Again people, please read her post again and recognize the symptoms -- they are spot on.