almost 3 weeks ago, I noticed my 6 yr old pug having trouble jumping on the couch. I already new he had hip dysplasia, but never had a problem. He was on NSAIDS, but liver values went up so until we can get to the specialist, hes on a diff pain reliever. He seems ok, he doesn't "act" like he's in pain, his attitude is normal, but he's still not jumping on the couch. The main this is tho that his tail (which is normally a double curl) is completely uncurled. I know it can curl, cause when we wake up and hes excited to eat etc., its curled. but for the most part he's keeping it down. Could there be a tail thing I've never heard of ????