This is regarding my 7 year old spitz dog , although he has passed away now , but I am not able to find the reason for his death , he was eating well, but suddenly one morning he woke up and didn't eat anything, I thought its normal , as it could be due to some digestive problem but the whole day he was feeling low , I tried feeding him with some milk but he vomited everything out and was only having water , he was also trying to sit in wet area and suddenly passed away within 12 hours , I am not able to understand what actually happened to him , I am asking this because I have other dogs as well , so that I can save them.