It could be pulmonary or cardiac in nature too...again they're not sure.
When I took Tiny to the vet this morning, Tiny was in shock and seriously close to dying...even I could see that. He could still die tonight. Hope he doesnt.
I'll post an update the next time we hear from the vet's office.
Tiny and me last summer in the front yard.
Perfect specimin of an aloof Bouvier