I called the vet today. They said that i should keep an eye one him and if anything else changes, or i see anything different in his routine i should bring him in. Because of his age, they believe it is probably due to that, and we have talked about his weight, which like i said he is only 1 or 2 pounds over weight. So i will have to just keep an eye on him, and i am keeping him away from the grass, because he dont throw up very often from food or hairballs, which he rarely gets hairballs even though he is fluffy.