I, too, never find that I haven't consumed enough carbohydrate to fuel my activities. I lift 2 or 3 times a week, sprint 2 times and do a strenuous hike at least once a week. I don't consciously manipulate my carbohydrate intake either direction. I eat potatoes daily, sometimes candy, but my carbs don't get much higher than about 150. I feel great and energetic. In fact, I credit the sprinting most of all for giving me the extra energy I feel these days. I think too many people are too concerned about what they stick in their mouths, as if that's the key to everything. I think putting in the hard work training makes a bigger difference.
Female, 5'3", 50, Starting weight: 163lbs. Current weight: 135 (more or less).
I can squat 192.5lbs, press 75lbs and deadlift 210lbs