has anyone else been sick all winter and spring? it seems like there are a million different colds, viruses, plagues or whatever going around this past few months, and it seems like i've picked up every one of them. right now i've got some kind of chest congestion thing, that's got me on anti-biotics . my doctor doesn't seem concerned, i trust him as he's a cyclist too, but still bloody frustrating! what are you doing to keep healthy?