Two months ago my German shepherd went down in his rear end. He could hardly get up, even though he is 11, he has always been very happy and active. He went from being able to jump in the truck to hardly able to get around overnight. I thought maybe had injured himself, yet it seemed like something else. I didn't take him to the vet, as I have been down the prednisone road with other dogs. I gave him MSM, did reflexolgy, massage, EFT, and recently we both started a tonic ACV based. We're hiking the mountains now yahoo. This happened the day after I gave him a treatment with Frontline, something I have been giving him for years. Any conection, what do you think. I have been afraid to dose him again, in case this may be the problem.