GLC, I am that thin, athletic woman you never thought had to struggle with eating. If I wasn't as rigid as Goldfinch, I'd weigh at least 25 pounds more, even with a good level of activity. Like Wahine, I get sick of being obsessive about this, and every Tuesday and Thursday, when I leave for the gym at 5:15 AM, I tell my DH "I get sick of being healthy sometimes." I do loosen up on the weekends, too, but so far I've been able to stay within the 2 lb. range I set for myself. So, while I go out and enjoy my food, I don't throw all caution to the wind.
I am going to have my first long riding weekend this weekend, 3 days, as it's a holiday here on Monday. I know I will be ravenous.