Its not easy when switching to a different dog food, especially when they are not all made the same. For the time being you might want to give him some plain white rice until you can figure out what the problem is. I had the same problem with my St Bernard, I was giving him Nature’s Recipe until he got very sick. I ended up taking him to the vet because I really wasn’t sure what the problem was. Anyway we found out that he has a problem with foods that are high in protein. So before you go and switch foods again you might want to take him to the vet and have them check him out.
