Running

Am doing my first half marathon in two and a bit weeks and have been doing some 9 - 11 mile runs.

For the last few times, whenever I get to within the last mile or so, I start getting really sharp pains on the outside of my knee, and it's sometimes up in my hip too (both on my left leg). I feel totally fine all the way round and then it's like my body knows I'm near the end and gives up.

Don't have a clue what's causing it, am running with shoes reccommended for my stride from Runners Need that are only 3 months old.... any ideas / tips?

ITB?

http://en.wikipedia.org/wiki/Iliotibial_band_syndrome

I just discovered this.

World's Best IT Band Stretch by Dr. Geoffrey Alan Gray - YouTube

I will hunt them both down and kill them.
Try this.

(Of course, it may not be your ITB, but the only way you're going to find out that is if something falls off or snaps.)