Context: The back pain I 'd been joking about a few days ago became no joke yesterday . I hobbled home from work early , and by the time I got home I could n't even stand upright . The pain was so bad that I was sweating and gasping .

Question: What could have possibly caused this back pain I was experiencing ?
Options:
0. It is because I joked about it , that jinxed me !
1. It was from sitting around doing nothing .
2. None of the above choices .
3. The sweating and gasping made the pain even worse !
Answer: 2