Sick and Tired

I caught a chest cold last week and have had a lot of congestion and whatnot. As a result I have not been riding my bike at all, not even the commute to work. I can feel a difference in my body without the exercise and for some reason my muscles feel more tense than they do when I get my exercise in. My back even started hurting yesterday which is something that almost never happens. I'm planning on getting back into the bike commuting as early as tomorrow if all goes well. I'm still not completely over my cold but I have to get some activity going again.