Jane,
If you're really feeling full at just over 1000
calories/day and don't feel that you can increase the amount of food, maybe you could try and choose more calorically dense foods. That way, you can move closer to your calorie
goal without feeling like you're overeating. I think it's really important to eat an adequate amount of
calories in order to keep your metabolism fired up. It's like stoking a fire. If you let the fire die down to a glowing ember then your
body will conserve
energy, whereas if you add some timber and get those flames burning, then your
body will feel the freedom to burn more
calories.