The speaker thinks they have recovered, but the feeling never lasts. Each time they begin to believe they are healed, a memory interrupts: the person they used to be. The question mark in the title, "Healed?", already tells us the speaker doesn't fully trust their own progress.
What stands out is how the poem treats that earlier self. It doesn't describe someone broken or ashamed. The signature, "magnificent," reads as a kind of label for who they once were, and if we take it that way, the pain comes from loss rather than from injury. Healing here may not mean getting better so much as accepting that something splendid is gone, or changed. The poem doesn't say how that happened, and it doesn't need to.
The mood is quiet, wistful, and a little unsettled. The short lines and plain wording feel like a held breath, and the ending leaves us with an ache instead of an answer.