Just here to sing the praises of a podiatrist/orthotist I've just discovered.
Been suffering with a partially torn posterior tibialis tendon since January (that's right, 5 months off running!!!).
Saw Mr Hussein on Friday, had my orthotics fitted on the following Monday (!!), and today, have been wearing them for 17 hours straight with no discomfort! (his is the 1st link in the London injury link section - the running man icon)
17 years experience, trained in podiatry, podiatric surgery AND orthotic engineering he seems to have all the tools for efficiently correcting any gait/lower limb structural abnormalities.
What's more, the price for the entire package (initial consultation, orthotics, fitting) was £165, less than what most podiatrists would charge for orthotics alone!! Aftercare is complementary.