How many miles did you run last week?
Do you know approximately how many calories you consumed?
Let's assume for a minute that you are not meeting training and/or weight loss goals. It's hard to know where the breakdown might be unless you are keeping track of what you are doing.
Take a lesson from The Happy Runner blog and keep track of your training activities. By logging your miles, calorie intake and other stats; you can easily identify issues that may be keeping you from the goals you have set.