As per title - can anyone recommend a clinic or a person in London? Preferably one who has experience with sports injuries.

I've been out of the running (badum tish) for a few months now with a sharp pain under the ball of my right foot. As I try to protect the ball of the foot during running, it results in a bit of a limp. This has had a knock-on effect on my right knee and right hip, and it's time to stop procrastinating and get it sorted out. I've had x-rays taken and these don't show any problems. Next step is to see someone who can recommend a way forward. I'm in London for a few days every week, so I can circumvent the English/Spanish language barrier and speak to someone who understands my waffling and vague descriptions.

I've had a quick hunt around with the search function but came up short.

X-rays attached for those interested.

Costs are unfortunately for my own tab as I am no longer on the NHS, so that's not a deciding factor.