When I had sciatica, pinched my sciatic nerve, my lower right back would hurt and I would have shooting pains from my hip all the way down to my leg to my toes. kind of a lightening, electric shock type feeling. VERY painful to say the least. They would come out of nowhare when I was walking or standing and I would lose all control and use of my leg till they stopped.
Chiropracters are great
Sorry I'm not much help, lol!