My dog just died this afternoon. For the last two days he refused to eat, just resting / idling for almost the whole day. Yesterday, he vomited several times (yellow in color), so I suspected maybe its because of stomach acid, and he will probably eat sooner or later. This morning I found that there is a pool of blood and several of the yellow vomit. Late in the afternoon I go check on him again he is just idling, but his eyes are empty, pool of saliva below his mouth, and his tongue is out to the right side and his jaw is getting stiffer and biting its own tongue. Soon after he started vomiting a lot of yellow liquid and blood started also comes out of his rectum. He takes a huge inhaling motion through his mouth and several moments later he is gone. I couldn't have brought him to the vet because I live in a remote area, so I was just wondering if I could do anything to prevent this from happening again.