In reply to energico:
I would go to a sports physio first, every time, forget the doc. To have a chance at diagnosis they'd potentially need a minimum of 30mins for background, training history and examination. Doctors just don't have the time or expertise.
Xrays often miss small fractures. Ultrasound can miss tisue damage. Some injuries in especially complex areas like the lower leg are tough to diagnose.
Ukc advice; Whilst you have to treat advice cautiously there won't be a climbing or running ailment that hasn't been encountered before. A person might not physically self treat but they could easily do some self elimination and stop doing something that causes more damage, whilst waiting for an appointment.
As the saying goes, don't knock free advice, you aren't forced to act on it.
Post edited at 12:35