When something seems wrong with your cat, or different from usual, the instinct is to look for reasons online — and also to depend on the Internet for solutions. There’s nothing wrong with doing an online search for clues about what’s going on. But it doesn’t take the place of bringing your cat to the veterinarian for a professional assessment and treatment plan, should one be necessary. In fact, the American Association of Feline Practitioners has made “Don’t Rely on Google” one of its primary Feline Wellness Tips, up there with “Check Weight Periodically” and “‘Brush Up’ on Your Cat’s Oral Care.”