Because I am in pain when I sit more than about 10 minutes! I'm not sure I want opiods. Extra strength Tylenol makes me weak and doesn't help so much. The worst is the Gabapentin. I take it at night and I feel spacey/mildly dizzy the whole next day. It helps somewhat with the nerve pain so I can sleep but I can't take it in the day. I tried once and almost went to the ER!