I had knee pain for a long time. Sorry to have to tell you this but one week of rest doesn't count as rest with this sort of thing.

Knees seem to take a long time to recover once they've decided they're unhappy and it's often really difficult to diagnose exactly what's wrong.

I spent a lot of money trying to get my knee fixed which didn't reveal much. In the end I think it was a secondary symptom of a back problem I have rather than anything I could treat directly.

The longer you train through the pain the longer you are likely to need to take more time off to get over it too.

My knee is pretty much better now but for about a year I didn't think it would ever be normal again. Rest means reduce impact more than rest I think.

For a few months I did nothing but swim and then when I came back to boxing training I didn't do any skipping or running for a long time.

Gradually I felt could do more, starting with short jogs on soft grass and normal skipping and now I'm not restricted at all - plyometrics being the last thing to find I can do again.

You WILL have to modify your training to reduce the shock to your joints and every time you try to come back to normal training too quickly you WILL feel pain again. It's highly likely that it'll take a long time to work out exactly what went wrong but once you understand it you'll be better off.

I think most people with permanent knee trouble have either had surgery, some sort of destructive sudden injury which resulted in completely snapping the ligament or they just don't take the time they have to to recover fully and pushed it too hard to the point of no return.

Be patient and you'll come good eventually and yes I know it's frustrating!