I don't mean to be rude, but if your dog is sick and you can't afford to take him to the vet, maybe you should reconsider having a pet. My dog recently had bowel obstruction surgery and he had the same symptoms. If I would've waited two more days to take him in, he would've been dead. Just something to think about. Maybe Loki just has a bug, but he really needs to see a vet now.