Eight, in your case, but six when you were born, which is generally more relevant. I've never heard of a Rejoining altering one's physicality, though I suppose I should not exactly rule it out.

[He had also not exactly heard of someone rejoining themselves, after all, in such a personal state, but Hydaelyn's Emissary and Champion both had proven him wrong on that account. He's no stranger to the unexpected, but that still caught him by surprise.

A pause to clap politely, as the most recent storyteller descends the stage.]

Cognitive ability has been known to do so, but being whole myself, I can only but speculate to how much. It is impossible even for an Ascian to crawl inside another's skull and know all of his thoughts, after all.