Ah, I see!
It sounds like one of the hazards to working with many children! (I know about
that one, Deb! You catch everything going around!)
So there's nothing for it but to lie low, drink lots of liquid to hydrate yourself & wait for your strength to recover?
I hope, at least, you have the energy to at least read a bit, or watch the odd video? But most likely you'll be sleeping a lot.
Aw, not fair!