Attacked By Fever

I have wasted 6 hours of precious time today. Why? It's all because I have been attacked and brought down by fever. Though a mild one at first, it has now become rather annoying. I wanted to study today, but I couldn't concentrate. And physics requires a good deal of concentration. So that's out of the question. My other options? Well I have economics, calculus 2 and history. I tried doing them, but I could not. So its one day wasted. Its such a shame really, because I had intentions of keeping myself up to date on the current lectures. But it looks like I'll have to do it on the weekends instead.