In reply to Rachel Slater:
A private physio sorted out some knee and back problems I had that all stemmed from uneven hips (apparently many (if not most) of us have wonky hips) - he supplied me with orthotics and various exercises that really helped. He was down in Huddersfield, not sure if he's still down there, but I know my husband used to use (and rate) a physio called Ben in Baildon - I can find his contact details if that's sufficiently within your area.
I do have a friend who's an osteopath based in Bingley, who was explaining to me only this afternoon about the crossovers between osteopathy and physiotherapy, but it's probably best not to go into that here!
I'm now suffering with all sorts of back pain but I barely climb now - perhaps there's a link...