I'm assuming these are his deadlines and not yours. Don't lose sight of the fact that your health is way way more important than his priorities. Also, it is not a good idea to 'battle through' when you have covid - studies are showing worse long-term effects for people who try to keep going. Obviously, you can't just sleep for a week, but you should rest. My advice - put your own and Ben's personal priorities first and stuff everyone else.