Best of luck to you. I was 265 pounds, and started fasting over a year ago, and am now well under 200. I do have quite a bit of loose skin and stretch marks, but the majority of it came from my c-sections with 2 children. My upper arms, and lower abdomen are the worst. One thing i can not stress enough though is light toning and exercise, stay hydrated as well. Also use vitamin E oil. It helps! Building and toning the muscles help to pull the skin tighter, and the oils and water keep the skin soft and pliable.