Wrapped drywall on a Saturday and my lower back locked

https://katecollingwooddiy.cavandoragh.org/sports-medicine-toronto-approach-protecting-your-new-knee-while-building-strength-1

Finished drywall on a Saturday and my lower back locked, I told myself it would pass until week three when a massage during physio finally let me bend without stabbing pain, weird that it took that long.