[header] How to recognize bloat in dogs [title] Call your vet if your dog's stomach looks swollen. [step] Dog's with bloat deteriorate alarmingly quickly. A dog that develops bloat at bedtime, if left untreated, will most likely pass away by the morning. 
Sometimes the deterioration is even more rapid, and the dog may pass away in less than 2 hours after first developing symptoms. Because of this, it is absolutely imperative that you call your vet immediately, as soon as you notice the following symptoms.