training set backs

I started a new leg of training July first 2008, started slowly to let my body adjust to the new continuous exercise program, that I was about to adventure on. My kicking, Forms, stretching programs. Then there is my cardio program, which started very wisely I thought. I started with a two-kilometer walk every morning for the first week, then, entered in spurts of running. Until, I could run the two kilometers after a month. Every day my back got a little sorer. Never thought too much about it, just another sore spot, keep pushing on. I would start running the pain was excruciating, just run a half a kilometer and it would subside to a dull ache. Still got worse, until one morning, I walked to the end of the driveway. I took my first step to begin running, my heel hit the ground, the shock on my back hurt so bad I hit the ground in pain. As I am on all fours on the road, I am thinking, OK may be not so smart. I pick my self up from the ground; walk very gingerly back to the house. Angry inside at myself for not listening to my body, pride hurt. Now what am I going to do. Thinking this is the end of my training for a while.
Seen the Doctor, x-ray, CT scan. Chiropractor, Acupuncture. All advise to stop jogging, running. My back is getting worn in one spot.
What I can do is Tai Chi without twisting, stretching without bending too much, must push on, take it easy but don't quit. Think this through. Aha maybe a bike, I started riding, yes this worked well. Not much twisting no jarring on the back. I spent the next two weeks riding bike, short distances. Eventually made it to twenty-kilometer rides. Enjoying the scenery and the peacefulness. My back was on the mend. Over the years we have all had injuries, we just have to find a different approach to set backs.
Now I am back to full program of push-ups, sit-ups, things are good the back is fine. Snowed today might have to put the bike away. What's next.
Max Hayes