Dear tigajess,
Please read in health section Bella renal dysplasis,This is what Bella did and it took until she was 5 months old,many local vets visits and a very sick girl for the specialist vet to tell us she had r.d.Our breeder gave us all the diets,I tried everything for dog and human with no long term solution She is now on the Hills diet for renal failure.which is the only food that is suitable for her.Please seek expert advise before it could be too late.At least if you see a specialist vet they can do an ultrasound,blood tests etc to eliminate Bellas disease because as most normal vets do not recognise the disease until the dog dies.We take Bella to SASH at north ryde in sydney they have a specilaist in renal failure.Bella is listed on aones.com,have alook at her breedline if your puppy is related do not hestitate.