Difficulties herald better days.

Turns are usually invisible while they are happening. A fever breaks at four in the morning and nobody in the house is awake for it. The news arrives hours later, in the form of a person who is simply less hot and rather hungry.

Recoveries in a life run about the same. No announcement, no clean line between the hard part and afterwards.

Which means you can be past something and not know it for a while. The improvement tends to be well established before anyone gets around to noticing.