Hi I have a Pomeranian/Yorkie mix. He is a year and half old. I got him off craigslist about 2 mo ago. They told me he was fully vaccinated but didn't give me any papers. Anyway I changed his dog food on fri because I couldn't find the kind I usually give him. He was fine during the day but that night he started puking and having bad diarrhea. I ended up finding his reg dog food so I feed it to him the following day. But nothing changed he is still having diarrhea and puking at night. Woke up this morning to his kennel having puke all in it. I don't know what to do. I don't have the money right now to take him to the vet. Does anyone know if this is just from changing his food for one day? Or is it something serious?

OK, some dogs can't keep carbohydrates such as potatoes, it could be that the food contains high amounts, about the puke, the best thing to line his stomach for a few days is chicken and rice in small amounts, if this helps, set him or her back to its normal routine good luck from standen