Dear nirvarq, actually upon reading your post, I actually went down to the east coast to rent s bicycle for 3 hours. Ride to changi airport and back, had makan at the east coast lagoon hawker center. Felt good, though still a little painful but seems to work, not sure if it is psychological, but I will continue to do it for the next couple of weeks to see if it gets better. Thanks for the great suggestion.
Don't think 1 round will help so fast lar. Could be the effect of endorphins

Yoga helps to stretch and decompress the back. Try something like Hatha yoga, where it focuses on foundation. Yoga can be adopted by all ages because you do as much as you can, not someone else's standards.