my cat is 13yrs old and is limping on his front leg. i am able to touch it, he is not crying in pain but he will not always put it to the floor.i have had a good look at it and his leg i can't feel anything out of the norm. he may be 13yrs old but he is very fit for his age.he jumps off my extenstion roof and sheds. it may be where he got bad leg from.it has been two days now and looks like it may be getting more painful. o well vet here we come.
He may have just twisted it on landing.The same thing happened to my cat but he was fine within a couple of days.
Obviously, if it continues, take him to the vets.
Maybe arthritis. My cat got it in his jaw when he got older. His jaw started clicking when he ate. At first I thought it was a tooth so I took him to the vet. The vet diagnosed arthritis of the jaw and recommended the cat version of glucosamine, and after quite a short while (weeks) it did the trick. No clicking jaw and it probably helped his other joints too.