Over the past 2/3 months I've gained a new injury, which has currently got me baffled. I'd be interested to hear any theories. I have already had one session with a trusted physio (about a month ago) which ultimately proved inconclusive - likely to have another session in the next week or two, in an attempt to get a diagnosis.
It's 'something' to do with my left knee (maybe!). If I attempt to walk downstairs I get a sharp, shooting pain down the outside of my left shin (and a little bit in my knee). This only happens as the knee moves through a relatively small angle, and only if I load the left leg individually. I can bend from standing to squatting on both legs - no pain. But if I try similar on left leg only then I experience this shooting pain (presumably because I'm fully loading the left leg?). In all other aspects the knee seems fine - not swollen, no reduced range of motion, no other pains. The knee is also not keen on any high steps - e.g. it feels weak and painful if I attempt to stand up onto a chair.
Up until New Year's Day I was running regularly - as I have done for years. Mostly without pain, but I would sometimes take a few steps where my left leg would feel like it was slightly collapsing under me, then it would recover. Running in a straight line was generally OK. Corners and steps (specifically steps down) would sometimes give problems. Over Christmas I started to feel pain while running - generally after about the first 30 mins. I had to retire half way round a couple of events over Christmas and have decided to stop running until I'm recovered. I'm walking plenty and doing regular sessions on the turbo trainer, as well as climbing (routes indoors) - none of these seem to give me any trouble. But my knee doesn't seem to be getting any better.
I'm really baffled! Happy to hear any thought.