I have a 7 yr old male that was neutered at a young age. He has begun spraying in some places, especially the sides of plastic storage storage boxes or trash cans. Now he has also started yowling at night, and aggravating two of our other cats (spayed females) by stalking them. I've taken him to the vet, they could find nothing physically wrong. He's acting like an unfixed male, but why? I tried Feliway diffusers for a month, there was no change except they made my chihuahua start peeing in the house....so those had to go.
Any other solutions you could suggest?
Any other solutions you could suggest?