I have 2 GSD,s both girls totally different in sizes and build. My younger girl Harley is not yet 2 . She has started having real difficulty to stand up using her rear legs. Now she doesn't cry or whimper as if she is in pain , and once she starts moving around any limp goes away. I did take her to the vet and he saw how she got up and watched her walk . All he said is its probably arthritis and gave her some pain pills. Does the glucosamine chondroitin stuff really help ? Harley's been taking it daily for about 2 months now and I don't see any improvement . He did say she should lose about 6 pounds . Any advice will be appreciated. Harley came to me sort of as a rescue , she had 2 previous families that could not keep her . This was all by the time she was 4 months old . So I don't have any family history.