Hasn’t the vet put him on a vet prescription diet to see if the diarrhea will stop, then go from there, I know alot of people dont like vet diets but they are money back if they dont work & they may help ur dog until you work out whats happening.. with a lot of the grain free kibbles they have potatoes my boy cant eat the potato kibbles, 1 they are too hard to digest & go thru him, also German Sheperds are known for Pancreatitis what my boy has ..My boy has I.B.D & Pancreatitis he needs a low fat diet under 10% fat also he cannot eat boiled rice as it irratates his bowel giving him diarrhea..I give boil chicken breast with pumkin instead & this has helped him also he’s on a vet prescrition diet Eukanuba Intestinal & now he is doing real good after being on the Intestinal since August 2013 now Im so slowley mixing the Intestinal with Holistic Select Senior the fat is 10% the Protein is 26% & the fiber is 3.50% so far so good…it will say on the bag of kibble how much to feed a 18lb dog…..
