If you switch to a specific plan for awhile (like Atkins or South Beach, for example) and really try to be faithful to it, it will be easier for you to then figure out if you are doing anything "wrong". No matter what plan you are on, though, I agree with everyone else- your calories are too low. If your carbs are coming from some bread products, as opposed to mainly veggies and fruits, you may find that is giving you the "bloated" feeling. I didn't realize until after I started doing Atkins that my digestion was so sensitive to wheat.