Tomorrow I'll run my first marathon, and I'm a bit nervous. I'm a bit worried that I won't have the stamina to complete the race without walking a large part of it. But I'm also having a bit of pre-race hypochondria. My left knee began to hurt a few minutes ago, and that's never happened before. I kept walking and the pain eventually went away.
I've done everything I can to prepare; now I just have to get plenty of rest and eat plenty of carbohydrates before the race. Wish me luck.