My goose has diarrhea and is heavy breathing. He is having troubles with standing and cant keep his balance. He has a swollen anus or a bubble pouch on his back side
It seems to be an infection of anal glands (sacs).
Once infection happens, take your Bubba to a vet to drain the fluid out of anal glands.
To make sure what is it about, you should contact a veterinarian, in order to explore Bubba and perform the appropriate tests.
All the best,