The Doctor held up a hand. "Don't worry about it, I just had a bit of a fall in my ship before I landed, I sometimes catch my back without realising it until later." 

He didn't hesitate the offer to sit down when Dani helped him to the seat, feeling his back pain instantly begin to calm. "Oh I'm older than I look, much older in fact." He commented. "At a guess, I'd say about 885 years older. The last time I checked, I was 904. I might be 905 now." He chuckled lightly, admiring Dani's handiwork. He had to admit, she had done a brilliant job. "It's looking great!" 

Dani moved closer to him, making a deal with him for information. He smiled and nodded. It was only fair. "Deal. What do you want to know then, Dani?"