Pardon my bluntness, but this surgery would be a waste of money.
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At 5'4 and 144 lbs you could very easily lose 15-20 lbs within a few months and still be at a healthy weight. The best and only way to do it is through diet and exercise. Eat healthy food, control your portions, do cardio work, and lift weights. If you stay disciplined it will work, I promise. And no, lifting weights will not make you look bulky. That's nearly impossible for a woman. You will be toned, lighter, and you will feel better.
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I talk to people about this all the time. If you eat less, your body must lose weight. You cannot violate the laws of physics. You are far better off with diet and exercise, trust me.