Not the poorly single parent again...he went out for a whole flipping morning!
TT you've flown on several 'planes recently. You know, the mode of transport that is notorious for stewing diseases - a sneeze of this, a micro-droplet cough of that, a smeared nose picking of the other.
Get googling those symptoms! I'm sure you can make something fit which is much more brand TRAUMA than your dusty aircon.
Maybe she was bitten by a scorpion.
Such a risk with all that bare arm tomfoolery.