I hurt my back last week doing deads. It was stupid; I let the weight go forward and after having hurt my back a few years earlier (bad posture sitting at the computer all day) I felt a stabbing pain and BAM I was out of commission for a bit.
Yesterday was the second day I had zero back pain since I was doing the chiro exercises I did before when I hurt my back. I did some light deadlifting, being very careful with my form.
I woke up today and my back still felt awesome. If anything the deadlifting yesterday helped. As I was watching TV, laying down and relaxing, I felt a sneeze.
That sneeze popped my back again, and I'm in pain.