[[Depends on which you mean: Humanoid Toon or human proper.
In either case, he’d have his discomforts, but especially if he woke up as a real flesh-and-blood human. To him, that’s like waking up as Yog-Sothoth all of a sudden. Expect panic and loss of sanity.
He would probably be his Toon age, to be honest. Either that, or a very active old man. He gets plenty of exercise, after all (though not enough sleep).]]