No, Kaido literally says “your a dead man walking”
he is actually dying when he’s not in awakened form
the Awakening did resurrect him but apparently that’s all it did, the damage he sustained is seemingly still there
When he’s in awakened form none of the damage he had before affects him at all. And when he goes out of awakening all the damage he had magically just appears on his body
meaning he’s not actually healing. He’s just transforming into a form that has better endurance and stamina than his base form