"Ohh, it's nothing. Just a little ache. I can barely feel it now." Which was true because he had pushed the pain aside to deal with later. The fun of being a timelord.
He stared at her before his eyes widened. "OH! Oh, of course! Isabel!" The Doctor bypassed her hand and went straight for hugging her instead. "Of course it's you."
He took a step back afterwards and nodded. "Ah yes. Body mishaps. They can be annoying sometimes, can't they?"