I was on a charge in January, and really enjoying it. Until...(wait for it...) a less than perfect deadlift. Thankfully, it's not an injury per se. But my lower back went into spasm and has been very very painful, tight and at times totally immobilized at the bottom.
2 massages helped. Then an attempted row made it even worse. DOCTOR! Muscle relaxant, anti inflammatories and Advil. And physio therapy. I have had some pain-free moments but 8 hours on my back tighten it up quick so I think it will be a bit before I am back in good shape.