They are and you know it.
I recently started substitute teaching-one needs a master's degree for that these days dontcha know. I have worked three days in two different schools. By the end of last week I contracted what I have come to believe is some sort of insidious plague that intends to devour me with mucus from the inside out.
The kicker is that despite my symptoms: sore throat, fever, general lack of energy, and headache-I look fine.
When I am sick I want people to know it so they pity me and shower me with the attention I feel I deserve.