Went to the Drs about a month ago with a similar complaint.....sciatica was diagnosed although not to bad but occasionally. I had 2 options, NHS approved exercise and/or NHS approved physio from a local physiotherapist organised free via NHS Wales for self employed people and business owners....... We keep the wheels of industry turning apparently. I went down the exercise route as the exercises were downloaded and easy to follow. Touch wood, it seems to be sorted which is a shame really as I'd love to have found out the physio was a 25 year old topless Thai girl with a thing for Johnsons baby oil.