I'm so sorry to hear you're worried about your dog possibly having parvo. Parvo symptoms can include severe diarrhea, vomiting, lethargy, and a loss of appetite. Early detection and treatment are crucial, so contacting a vet is often the best step. Do these symptoms sound familiar, or are you noticing other changes in your dog's behavior? I'm here if you want to talk more about what's going on with your furry friend.