I've had my cat TABBY for 6+ years. She has started to spray throughtout the house and has also been spitting up hairballs (expected) and other times just bile (large amount) It's increased over the last year. The home is stable, no changes. We also have a dog. No issues there. They play and hide together during thunder storms. Gracie (dog) is not allowed in her area. We are balanced in the way we treat them. Any suggestions? I'm about to renovate my office (everything new) and do not want this to move there.