Sorry to hear you're sick, but since you're online looks like your going to make it :))
For me it's the coughing - prolonged coughing fits, eeww....
The good part when I was down with the flu was that the only thing I could manage was reading... until I fell asleep, but still a lot of reading.
Yeah...this is the longest I been up (for 5h) since thursday lol. So guess im out of the worst. :) ...yeah coughing is bad...and since i never liked getting advices I feel like a hypocrite for saying this....i was a chain smoker and it showed when i got sick...swaping to vape (e-cigarets) helped for 100%. No joke. In case u ever look for alternatives.
As for reading the feever usually stops me with that...my brain gets all soggy.