That wasn't sciatica you knob!
Google "facet joint" and take a browse through the spinal info - then, when you get to "radio frequency de-nervation" you'll know what happened to me . . .
. . . and all because . . . .
(Nothing to do with Milk Tray)
. . . . the disc between Lumbar vertebrae 4 'n 5 has 'vanished!'