I felt totally myself, nothing like the emptiness and horrible feeling I had then [pulling out the Olympics] - no dizziness.

To represent your country at a home Olympics is something special and I'm over the moon to be selected for Team GB. I was pleased to get the qualifying time in Berlin earlier this year and my sole focus is getting in the right shape for London.

It's totally different from last year because I came in with good shape with no health worries so it was about going out there and running well and enjoying it.

You can wish as hard as you like but all that really matters is the shape you're in on the day of the race. I've always felt these really big races aren't necessarily won by whoever is the fastest. They're won by the athlete who is the smartest and in the best shape on the day.

I don't like going away from my children.

Never set limits, go after your dreams, don't be afraid to push the boundaries. And laugh a lot - it's good for you!