As part of biking, one thing I have learnt is to listen to my body. You know intensity, eating and drinking before you bonk or dehydrate etc etc. I got the flu last week and still got some lingering aftereffects with sniffles, sinuses and such. My mind wants me to HTFU and put a session on the trainer to clear the airways and get a decent sweat. The body, though, doth protest and says "mucho take it easy". The muscles are sore, there is still some congestion and all it wants to do is rest. My common sense wants to take it easy and not bike but my brain wants to me to HTFU and go ride like crazy.
Texas Condominium, Texas New Homes