Feeling Old

Lately, I have been feeling old.  I know it's a cliche, but it has really been since I turned 40, almost to the day.  First I pulled a muscle in my chest playing basketball.  Then I tweaked my lower right back during a trail race which really got me off my game for like 3 months.  I had residual Achilles stuff from the summer of 2011 on my right Achilles that I don't think has fully healed.  Then my lower right back never really healed.  In February started to see a Chiropractor and have been doing that for about 3 or 4 months now.  Now, my knees (especially my right knee) have pretty bad tendonitis. Can't run everyday, but am trying to do eccentric exercises to strengthen the knee and the muscles around it.  So, I have felt old (really for the first time in my life).  It does present an opportunity to start to think differently about preparation, about taking care of myself, stretching, planning, taking time.  I need to do these things.