I adopted a dog (3 yr. old shih tzu, female) about a month ago. Suddenly she's eating her own poop and vomiting. Sometimes she strains as if she has to poop and nothing comes out, sometimes she strains and a small blob (like raw liver) comes out. I have never seen a dog with parvo, could this be symptoms of it? I recently lost my job and don't have money to see a vet right now, but if its parvo I know I have to do something. Sometimes she will throw up (clear or light yellow mucus). It's never her food that she throws up, and I recently witnessed her eating her own poop ( which really smells terrible). Are these symptoms of parvo?