Yeah can confirm. I try to keep it low but then pain lingers for days and cumulatively over the days most probably I took as much as I should have taken in stating few days already.
No, moving definitely works. I can almost predict when my sciatica pain will be coming - usually when I work long hours sitting and don't do enough movement. I struggle to be more active than just going to the gym. I think we - those who suffer from herniated disc and sciatica, need to move much more than those who don't.