I tried to get my mom to take her to the vet but she didn't think it was anything to worry about. Lately she's been puking up
nothing, like she dry-heaves and makes a coughing
noise as she does it. But she's still her normal-self, hyper and energetic. She vomited today and there was blood in it, even though it was barely noticeable. Is this serious? She's a 2 year old Rottweiler-German Shepard mix. What are possible causes? Please only answer if you know what you're talking about.