I would like my goal weight to be between 155 and 160 also but unfortunately it is more in the 140 range. Below 135 I am losing needed muscle mass, and above 145 my knees hurt. The least I have weighed as an adult was 131, after being ill, and a couldn’t boost myself onto a wall the height of my waist. The most (non pregnant) is my current 153 which I hit for the first time fairly recently (last year or two maybe? After 45 anyway.) my torso tends to be shaped like a duck pin with only the bottom section expanding and contracting. My waist changes very little.