Just have each other - The Doctor finds Jack curled up in a blanket by the console, when he finds out Jack is ill , he helps Jack out, but soon much to his surprise falls ill too.
The Doctor got up early as usual ready to set off on another adventure across time and space, he knew he would be lonely and bored if he was traveling alone, he was glad he had Jack Harkness, despite the tension there had been between them at first when he had seen him again after the game station. The Doctor got changed into his suit and grinned a bit and seemed ready for the day. He wondered if Jack was up already as he knew not many people were up as early as him. He felt well rested and full of energy and couldn't wait to see what the day held.
Grabbing his favorite brown coat, he dashed out of his bedroom and to the console room, He stretched a bit and noticed Jack by the console wrapped up in a blanket. I wonder what hes doing here the Doctor thought to himself. He honesty hadn't expected Jack to be awake this early, he wondered Jack was even ok. He noticed the other man was just sitting there.
"Ready to get going today?" The Doctor was wearing his big grin as normal and stood by the console and checked a few things over.
The Doctor hadn't picked up on anything been off about Jack when he went to bed last night. He though thought there was something strange about him today. The Doctor though waited for JAck to speak up, he wondered if Jack was possibly just tired as they had done a lot of running the day before and been quite busy saving the day.