When you’re consulting independently, there are no sick leave days. No bad mood, no rough mornings, and certainly no excuses for early Monday starts.
And you know what? That gives a different perspective. Instead of “oh, I’d rather stay home than go to the office” it is “okay, how do I get my stuff done faster so that I can concentrate on recovery”.
Feeling sick sucks. But it has no influence on your work, if you don’t allow it. Really.