My dog is very old - about 14yrs. He had spinal surgery about 8yrs ago because he was paralysed from the waist down, suddenly and we never did know how it happened but it came on over a couple of days. But now he is getting weaker and older and sometimes he gets very stumbly like a drunk person and when he walks keeps falling over. At these times he wont lift his leg to wee, he just stands to do it. Also, when he looks at you he holds his head on one side, as if he were questioning. He's on Glucosamine and sometimes gets Rimadyl