2000 calories???? You're not eating enough. I weigh 100 pounds less than you and I'm dieting on 3300-2500 calories daily.
Figure out exactly how many calories you need on a daily basis. Eating too little will actually cause your body to add fat and eat up muscle. This is your bodies natural defense to under eating. It's called "starvation" and more than likely exactly what you are doing now. Use this formula to figure out exactly how many calories you need and eat 500 calories or no more than 20% less than your maintenance. Do this, lift weights, and do cardio daily. Add a stim like Lipoflame or (and) lipostim3 and it will speed up the process.
***Use the following equation to calculate your Basal Metabolic Rate***
Men: BMR = 66 + (13.7 X wt in kg) + (5 X ht in cm) - (6.8 X age in yrs)
Women: BMR = 655 + (9.6 X wt in kg) + (1.8 X ht in cm) - (4.7 X age in yrs)
***Please Note***
1 inch = 2.54 Centimeters
2.2lbs = 1kilogram
The BMR is the number of calories your body burns in a given day (unless you are overweight or extremely muscular).
Your BMR multiplied by your activity factor should give you a good estimate for how many calories daily your body will need, this number is called your Total Daily Energy Expenditure or TDEE, use the Activity Factors listed below for calculations:
Activity Factor
BMR x 1.2 (little to no exercise, desk job)
BMR x 1.375 (gym 1-3 days/wk)
BMR x 1.55 (gym 3-5 days/wk)
BMR x 1.725 (gym 6-7 days/wk)
BMR x 1.9 (gym 7 days/wk; twice daily; extreme training)
So now we have your BMR X Activity Factor = TDEE