I sympathise with you, out of nowhere while working sciatica just happened and floored me there & then, I lost all feeling from the waist down for a couple of weeks, except for the excruciating pain a couldn’t feel anything nor walk! Feeling started to come back but even after 5 years my right foot is still numb apart from the shocks that go through it! I have some kind of neuro meds to reduce the pain which helps. I retired at 49 and would recommend it to anyone that can, don’t worry im not claiming anything, im self sufficient. Anyhow I hope you get on top of it and come out the other side pain free to enjoy your retirement.