What are the reasons dogs stomachs swell and their panting is heavy?

Answer by  wpierre (70)

Your dog should see a vet. asap. The stomach could be twisted and now it is bloated. Fever can cause the dog to pant.

Answer by  boxers3 (550)

It sounds like bloat or torsion where the stomach gets twisted. Your dog needs to be seen by a vet right away as both of these conditions are fatal. Surgery will most likely be required to fix this.

Answer by  dingosan8 (407)

This is because there is a large amount of air ingested as he ate or drank. The panting is from discomfort caused by a painful condition called gastric torsion or bloat, whereby the stomach twists cutting off the blood supply. This is life threatening. Seek immediate veterinary care.