I have suffered with sciatica for over 8 years. it is very severe and constant. I find it very difficult to walk especially long distances, my left leg is in constant, aching pain, with pins and needles and sometimes numbness. my back hurts a lot of the time and I am now finding that I may even get the pain running straight through my spine and shoulders and cause me headaches. I have found it is not getting better over the years. What is the best solution for me? I had physiotherapy for a few months in the past but exercises only seem to worsen my pain.