While poking around on the web this afternoon, I found this
BMI calculator. The really interesting part is that after is calculates your BMI, you can input your age and it will tell you into what percentile of the population you fall. I was surprised...and saddened...that with a BMI of 22.5, smack dab in the middle of NORMAL for my height, I fell into the 11th percentile of women my age. In other words, for women my age, 89% of them have higher BMI's. I doubt that most are more muscular
Give it a try and see where you fall! Maybe we won't be so hard on ourselves.
Mel