Q. Jack Russell. Male 6 yr old dog acting strange, problem maintaining balance. Came on very quickly
DR. CHRISTIE LONG, D.V.M., C.V.A.
A. I would be worried about disease of the inner ear or of the vestibular nerve, which can both affect balance. There is a problem called Idiopathic Vestibular Disease I older dogs which causes loss of balance and nausea. Other possibilities could be a brain tumor, although I think that's less likely. And you should always consider the possibility of toxin ingestion, as any acute change in activity or behavior can be attributed to this. I'd get this checked out right away.