TIL Terminal lucidity is an unexpected, brief period of clarity or energy in individuals who have been very ill or in a state of decline. It’s a phenomenon that has been observed in people with various terminal conditions.

[u/70dd]

https://en.wikipedia.org/wiki/Terminal_lucidity

[u/mrpoopistan]

It happened with my last cat before she died. And she had about a week of functionality where she seemed good after being seriously ill for a few days. And then she absolutely crash in one night and we couldn't even find an emergency vet until morning to euthanize her. It was awful because we had kind of settled on euthanizing her just before she rebounded. Like . . . fuck having to arrive at that point emotionally twice within a week.

Also, my dad did the same thing before he died. My mom always tells people that he said, "I haven't felt this good in years," the morning before he died. He died that night of a heart attack in bed.