Isn't it strange the way the effect of exercise waits about 24 hours before it hits you? I played my first full set of tennis in about 10 years yesterday, and I was pretty happy with how it went. Sure, I lost 1-6, but the score at one point was 0-5 so by the end I was feeling a little more confident. I'd won a game against someone who's better than I did even back when I played regularly, and I'd gotten through it more or less unscathed* - I wasn't out of breath, my legs felt strong, and I felt like I could have played another hour straight away.
Fast forward to today. My lungs are so raw that I've actually called in sick from work, and m