Timing

How does these viruses know the worst timing possible to attack you? I am supposed to develop and print my first film roll ever and here I am sick, sitting in my bed, doing nothing. I want to get my Purple belt before I leave for India in August, which means I can't afford to miss classes, but again here I am sick, sitting in my bed, doing nothing. I need to get data from this company, get my tickets booked and so many numerous task but no here I am sick, sitting in my bed, doing nothing. Its so frustrating but I can't even scream as I have throat infection! What DID I do to deserve this?