ok, so my knee isn't a sentient being and isn't able to play tricks on me, but that's certainly what it feels like. I can't remember the first time my left knee yelled at me, but it's been intermittant for a while and more frequent since Grace was born. The reason I say it's playing tricks on me is that it comes and goes without rhyme or reason, I really cannot fathom any triggers or cures.
What seems to happen is everything is fine, then I'll take a step upwards and the pain hits and it's so intense ans such a surprise that I may well cry out, stupidly I usually then try again a couple of times, then resort to taking stairs one at a time, right leg leading. Then I'll forget all about it, until the next time I climb stairs or cross uneven terrain. Sometimes the first pain will be the worst pain, sometimes not, often it goes away completely between triggers, but sometimes doesn't.
I rather suspect that this is yet another hint that I need to get fitter and stronger, which is something I still need to figure out how to do. I really have to do something, I should talk to Andrew about pilates, because of everything I've done that really does seem to work for me, but as the private sessions do seem to make a big difference in it's effectiveness, it's a cost issue as well as a time issue.