I'd like to detail for you a frustrating situation I am having as a customer. It has caused me embarrassment, financial distress, and hunger, in that order. I'm going to give you the oh-so-verbose detail-loaded version, so be forewarned."
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.