I haven't quit yet, but I do have MAJOR concerns about weight gain when I do. I've only ever weighed 135 lbs in my entire life, and that was when I was 8 1/2 months pregnant with my son. I know that weight gain isn't a rapid thing, but at the same time, I know my age and hormones cause weight gain/loss constantly. I'm just concerned that if I do quit then the struggle back and forth with weight gain/loss will only increase. How do I sucessfully quit and remain around the same weight I am now. I work out like 3 days a week for at least 2 hours at a time and I'm always working really hard to make sure that my heart rate is up and that I am constantly breaking a sweat when I do work out. I hate running, so that isn't an option. Please help.