"Yes, thank you, I look terrible, I know," he grouses, freshly reminded of previous conversations with this very outspoken child. "I look terrible, the way Stone looks grey. But I'm not sick. Mary checked me out and everything, and she's a doctor."

Search him whether the authority and respect of that title will mean anything to Kitty, but it feels well worth throwing out there. A doctor and one of the Numbered, who better to check on him? Even if it's been a year and change since he visited her office itself.