Bring Up The Gimp

Right now I have to question the Ironman lifestyle. Is it healthy to push your body to that level? Being injured has restricted me to swimming and weight training, and despite not running or biking I feel very fit and strong. During the dog days of Ironman training I often, not always, but often feel sore and exhausted. Right now, even though my training levels are low, I feel in superior health. I wonder...