I felt something coming on before the marathon, but over the last two days it just slammed me... fever, no energy, brutal! I even fainted last night, fell to the kitchen floor (and scared the heck out of my wife!)
Went to the doctor, it's a chest/throat infection, so I got antibiotics and hopefully am on the mend.
This is the longest I've gone without running/swimming/biking in over a year, probably longer... I hate it! Can't wait to get back to my regular routine.