you're hungry because you're working out all the time. i would try logging your calories for a bit and seeing how many you're getting. a good rule of thumb is that you need 10X your goal weight to lose (ie: my goal weight is 140, so I strive to eat 1400 cals. per day). when you're this hungry, your body is telling you it needs more fuel to keep its metabolism up. make sure you're eating enough to sustain yourself.
100 lbs. down plus a carrot for every 5 more