Okie trying to lose weight and be healthy

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Hi everyone, I've been on this for 5-6 days now and haven't introduced myself. I am a RN, mother of 2 wonderful kiddos, and a wife. In high school and in college, I never had to worry about my weight, I was always in some sort of sports, but then life changes. Slowly, I began to gain weight. Now at 35, I feel I need to lose weight and get healty. I would love to lose 20-25 #'s, I've already made a lot of changes since using this site. I love it-my family thinks I might be a little obsessed, but we'll see. Lost 4.5 # in the last week doing huge diet changes, elliptical, and the shred. I would love and appreciate support. I want to feel good about myself again.