An echo of a heartbreak.

I wonder if there's a proper word for that somewhere. Random digression: don't you just get so irritated when you're looking for a word to describe something but can't seem to get it exactly right? There should be a proper word for that as well! It would be pretty handy, especially for people who constantly get writer's block, like yours truly.

A crushing sense of renewed loss, the shattering of peace.
Disobedient hands picking at the edges of the scab covering a healed wound...
Healing, actually.
Bit by bit, until a bead of blood appears.

That burning sensation prickling my eyelids.

Where do I begin?