I have a dauchund and he is normal weight more on the thin side, but lately his stomache has been huge. When i press on it it feels like pressing a water ballon and it has been like this for about a week. When i touch it or around it he doesnt cry or wince so i dont think he is hurt but maybe he is. If you know what this is or what to do about it please let me know.
Dachshunds are extremely stoic. They can be in real pain and keep it to themselves.
Daisy once swallowed a plum in the park and the pit lodged in her colon. She must have been in terrible pain but she gave no clue, until the second day when she couldn't even keep water down. Her whole system was shutting down. She must have been in terrible pain but she never once whimpered.
They have a terrible habit if gulping things down when you're not looking, so I would get to the vet just to be safe.