Recently have been thinking about this question because i don't particularly feel very fit at the moment. So i wonder, should i feel fit? What would this mean anyway? Am i expecting that there is some sort of physical sensation that essentially amounts to fitness? My workouts always feel hard, but thats probably just because i work hard at them. I've long since abandoned the notion that as i get fitter things are going to feel easier - because i've increased the intensity or challenge of my activities accordingly so that i spend most of my time training feeling like really pushing it. Maybe i have this notion of 'fitness' as a physical, sensory quality because i can remember times in the past when I intellectually thought that i was 'fit', and there were accompanying sensations that i assumed were the hallmarks of fitness. Residual soreness, aching joints - signs that i was doing things. I used to train 3 or more times as much as i do now - all that activity made me mentally more aware of my physical body I suppose. But now i feel antsy. I know by my performances that i must be pretty fit - long five hour days of moderate activity where i'm setting the course for the adventure race (that i'm putting on next month) don't really even feel like an effort. Dragging a tire for 4 and a half miles at just over a 9 minute mile pace to the point where i feel like i'm about to collapse doesn't seem to have a lasting affect - a couple hours later all traces of the effort seem to have vanished, and there is no soreness the next morning. But as this big race comes closer I find myself second guessing my fitness because of of the way I feel, or more precisely, the lack of the way i feel. Anyone else ever had a similar experience?