I decided to invest in a tens machine to see if it would be any help. Didn't want to spend a lot incase it didn't work so found one on ebay for under £6. It arrived this morning and I thought it was just a basic tens but it does loads of things! It has the sticky pads like a tens machine but has 8 different fuctions - accupuncture, massage, stroke,cupping, manipluation, scrapping, weight reduction and immunotherapy (not sure what that one is!) You can set it to different intesities and for 5, 10 or 15 mins. It feels very weird at first but has actually helped! I have only used it on my back up to now on the massage and cupping function and it is so relaxing. Pain wise I think bevause it is relaxing me the pain doesn't feel as bad. I would throughly recommend it even if just for relaxation!