Q. 13 yo Pitt x recently regressing in house training urine only. And has started randomly barking at nothing just stares at wall and barks. Eats slower.
A. The first thing I would do is get him in to see your vet for an exam and labwork. He may have a urinary tract infection that is causing him to have difficulty in holding his urine like he used to. The staring and barking may be indicative of a neurological condition, infection, tumor or some other disorder that affects his cognitive function. Your vet will be better able to advise you on your dog's condition and possible treatment plans based on the results of exam and labwork.