A diagnosis has a vibration and a life of its own. So even if you are talking about the symptoms of it being gone, you are still talking about it and giving it life and breath and the ability to wiggle back in. Think of a diagnosis as a precocious child who will get into things if you turn your back.
Once the child is in bed, you don’t keep going in to check if it is asleep. The fact that it isn’t running around disturbing things is your evidence. The same is true with a diagnosis. Once your get relief from an issue, refrain from ever identifying with it. It is the most efficient way to ensure it stays dormant .