Don't give up Ikle, I'm sure you can sort your knee out. I have runner's knee which has never completely gone away over the last 10 years. Whenever I get another twinge I go back to balancing on one leg (the bad one) whilst moving the other leg around - just to build up those small muscles around the knee. Closing your eyes makes it harder to balance and works the muscles even more.
It was hard at times particularly at about miles 12-14 when I thought the pace was going to be too much and I was running into a serious headwind. I thought the game was up and sub 4 was not to be this year. It strangely got a bit easier from that point onwards. I had to really focus and dig in a fair bit to keep the tempo up but I did it.
The only thing now is that it has given me a glimmer of hope. I think the odds of sub 4 are 75:25 against but there is some home hope and that could ultimately be very frustrating.
Things that will be easier on race day:
I will be rested.
I will not be carrying a litre of water on my back
Hopefully it won't be so windy
Hopefully I will have thought of more positive things to keep my spirits up
Rest day tomorrow and a trip to the physio on Monday. I forgot they were shut Saturday afternoon so I was too late to cancel when I got back from my run. It won't be wasted but things are a bit better in the glutes.