I recommend pushing a car-------yes, absolutely true !
One morning, woke up for work, could hardly move as my left side had " ceased " up. Got washed/dressed best way that I could, lying on the floor putting my tights on. Hobbled to the front door to my lift and got to work.
It was the middle of December, snowy and icy then at hometime, friend's car decided it didn't want to go any further after the lights changed so three of us pushed it uphill into the near pub car park.
My pain and sciatica went as suddenly as it had come on and fortunately from that day to this I've never suffered since.