"Alright." Greg answered. It was a little worrying for Sherlock not to care about what he was eating. Far as he knew, the man didn't eat often but was rather picky when he did eat. Greg glanced out the door into the living room, then looked back at Sherlock for a moment, observing. He was shaking, Greg could see that from here he stood. Their eyes met and Lestrade wasn't sure whether avert his eyes, or hold his. 
Sherlock lay back and almost immediately groaned in pain, curling up and breathing deeply to relax himself. Greg realized the other man probably didn't want him to watch him like that, so he turned his head and stepped out of the room, heading for the living room and pulling out his phone, to place their order. Then he answered some of the messages he had gotten from Donovan, not calling her back though. He wasn't up for finding all kinds of believable excuses while trying to hide what had actually happened. The woman always got curious when it came to Sherlock, eager to find faults in the man. Not that Greg could say anything against that, Sherlock certainly had never been anything close to nice to her and he didn't seem to mind the reaction he got. Since it was the reaction he got from most, if not all people. John was, of course, one of the few exceptions there. Greg himself had never been the type to get mean when maddened or reply alike. And he had learned over time, that Sherlock was just being himself. They got along just fine as long as Greg didn't let the comments to get to him too much. Which didn't always work, of course, but most of the time.
Some minutes had passed when he stepped back into the room and looked at Sherlock. "The food will be here soon. Can I do anything for you?"