Handbags   (The sad, the bad and the ugly. Non-productive stuff here.)

Ray, I'm not a Dr.. but to me it sounds like you were a bit too enthusiastic at the Gym..
I know I tend to try and prove to myself I can still do the things I did when I was younger, (I will be 72 next month ), usually with not the desired results..
So you have to wait for your back to get better, then go back to being active, but not to push yourself too much.. being active is Key !!!