I've been down with a nasty cold/influenza for 4 days.
Last saturday we held a small wedding party with our friends, and I felt something coming on late in the evening. Sunday I woke up feeling like shit, and no, I had not been drunk, I had only been drinking a Brøckhouse Stout and another quality beer that I can't remember (we had a lot of different ones).
Today is the fifth day and I'm not really that fit for fight, but important things at work require my attention this morning, so I'll see how it goes. If it's too tough I'll just have to go home again and rest, it makes no sense starting too early and hard.