My 18yo ds has been vaguely under the weather for 2-3 weeks. Started off as a cold, got over that, but never really got better. Hasn't looked too bad most of the time, just a bit tired. Being going to school, to extra-c activities, to work, but doing less socialising than usual.
This afternoon he asked me to buy more ibuprofen. Turns out he's been taking it on and off for over a week, and regularly since Saturday, and has a temperature of 39.6C when it wears off. He has been shivery and had sore throat and night sweats, only partially relieved by the ibuprofen, for over a week.
Because ds feels he can function adequately when dosed up, he doesn't want to take any sick leave.
I know he's technically an adult, but ds is still my boy, under my care. I've had Post Viral Fatigue after a bout of (real) flu, and I know a couple of people who developed CFS after viral illnesses. I'm not sure how long I should let ds go on like this, before putting my foot down and enforcing some rest.