hello im at the very begining of this my name is amber im in oklahoma city my doctor will be out of norman reganal healthplex.i havnt met my dr yet.im 6ft tall an i weigh 375 ive had major back and knee issues because of my weight.i suppose my ? is after the band is in place how long will it take to start losing the weight.and once you do does it help you to be more active:cry