I have a 7 month old miniature dashchund. For 2 days he has had the runs and has been lethargic. He'll continually pant and now has spots of blood in his diareah. His hips twitch and he has to stop to sit as he is walking. 2 days ago he was chewing on a dead bird, when I caught him I took it from him immediately. Could he have swallowed a bone and it cut his stomach? My fiance has him at an emergency vet as we speak.