hmmm.. I wonder why that is. I've had the same experience. I've been kinda sick for the last several weeks. First I got a cold. That pretty much went away, then I got some kind of awful flu bug a couple weeks ago, that made me stay in bed for a few days (haven't had to stay in bed due to illness in years). I am doing better now but some congestion and residual affects from that are still hanging around. I hadn't gotten sick at all through the winter, though I bike commuted in freezing temps daily. I suppose maybe it's just a coincidence that I have been kind of sickly this spring, probably has nothing to do with the season but I'm not sure.