Someone slipped me a caffeinated coffee today. It appeared in front of me when I wasn't looking and I didn't think to check before I downed half of it.
I know it was caffeinated because
a) I've been buzzing round like a honey-bee all day;
b) my left eye became sore and painful and my tongue swelled.
It may have helped shake off the last of the flu-like virus. I haven't felt so stiff and sore today. However tonight the temperature's plummeting - and as I sit shivering that makes it hard to know whether it's me or the drop in temperature.