Got a bug

I dunno what this is. A bit of a sniffle. A mild temperature. Turns into a cough if I try to do anything remotely energetic. And I can't seem to stay awake, or do much in the way of coherent thought when I am awake - well, maybe for half an hour or so, then asleep again. That's today (and off work as a result), previous days were "under the weather" but not bad enough really to have time off.

If it would just develop some real symptoms, then get it over with and go away, I wouldn't mind, but I've now missed three back-swording classes due to this (first one I fell over part-way through) and it just won't go away, and there's nothing much there to treat.