Are you sure? I read it as referring back to that scene specifically. The exact quote:
Harry felt… well, normal again. Sane-ish. The spell hadn’t undone the day and its damage, hadn’t made the injuries as if they had never been, but his hurts had been… bandaged, meliorated? It was hard to describe.
Dumbledore was also looking healthier, though not fully restored. The old wizard’s head turned for a moment, locked eyes with Professor Quirrell, then looked back to Harry. “Harry,” Dumbledore said, “are you about to collapse in exhaustion and possibly die?”
“No, strangely enough,” Harry said. “That took something out of me, but a lot less than I thought it would.” Or maybe it gave something back, as well as taking… “Honestly, I expected my body to be hitting the ground with a thud about now.”
Are you sure? I read it as referring back to that scene specifically. The exact quote:
(Bold emphasis mine.)