A small hum of agreement is the only response his comment gets, because she's noticed that sensation and frowns at him in fresh concern. Her hand on his arm grasps a bit more firmly to provide some extra steadiness.

"Are you sure you're all right?"

The ghosts hadn't been that vicious, but he might've gotten hit in the head or had some ghost magic done to him. It's nothing she couldn't at least try to heal before they walked all the way back, if he'd let her.