Well, after months of waiting I finally got some answers on my knee.
I went to see the consultant on Friday and when he said "if you have any aspirations of achieving anything through running, then you'd have to seriously consider these" and "it's possible that you're not built to run" (I'm 65kg?) it didn't exactly fill me with confidence.
I've got chondromacilia patella and after showing me the images from the scan, it was clear to see that there was severe damage to the back (bottom) of the kneecap. The route cause of the issues stem from very tight hamstrings and this has cause my pelvis to rotate which in turn has cause no end of issues with, well...everything else from the hip down.
The damage itself is at the top of the kneecap, the mid/bottom sections are fine.
In terms of pain, I haven't run for months (since Feb). Performing squats aren't painful, but not comfortable. Walking down steps in the AM are a little bit stiff (occasionally complained of feeling like an old man when walking downstairs in the mornings before my knee gave up). Cycling is no issue whatsoever. Walking is fine.
I was told to stretch my hamstrings for the next 4-6 months, perform NO squats, lunges...etc then try running near the end, if it didn't work (which he didn't seem confident it would; return and talk about what to do next.
So, has this "condition" caused anyone else to retire from running?
I'm only 28.