I had my first lower back nerve shock from what I now know was my L6 moving. After several episodes over the years. I developed a habit of doing lower back and core exercises. Mainly because it seemed to provide relief and normalcy. Found out about the L6 when I thought I had a kidney stone but it was... you guessed it the L6. Exray techs and enturns started swelling into my ex ray room to look. Felt special and violated at the same time. So my solution, Chiropractor and regular exercise.